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Finding the Fourth Proportional to 6,143.45, 9,215.16 and 1,526.45

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Solution

The fourth proportional to 6,143.45, 9,215.16 and 1,526.45 is: 2,289.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.45 : 9,215.16 = 1,526.45 : x
  2. Step 2: Convert to fraction form
    6,143.45/9,215.16 = 1,526.45/x
  3. Step 3: Cross multiply
    6,143.45x = 9,215.16 × 1,526.45
  4. Step 4: Simplify right side
    6,143.45x = 14,066,434.91
  5. Step 5: Solve for x
    x = 14,066,434.91/6,143.45
  6. Step 6: Final answer
    x = 2,289.67

Related Problems

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Half scale
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Double scale
Find fourth proportional to 6,144.45, 9,216.66 and 1,527.45
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.