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Finding the Fourth Proportional to 8,041.81, 12,062.72 and 4,345.78

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Solution

The fourth proportional to 8,041.81, 12,062.72 and 4,345.78 is: 6,518.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,041.81 : 12,062.72 = 4,345.78 : x
  2. Step 2: Convert to fraction form
    8,041.81/12,062.72 = 4,345.78/x
  3. Step 3: Cross multiply
    8,041.81x = 12,062.72 × 4,345.78
  4. Step 4: Simplify right side
    8,041.81x = 52,421,927.32
  5. Step 5: Solve for x
    x = 52,421,927.32/8,041.81
  6. Step 6: Final answer
    x = 6,518.67

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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.