Home / 15,243.30-21,035.09-8,527.67

Finding the Fourth Proportional to 15,243.30, 21,035.09 and 8,527.67

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Solution

The fourth proportional to 15,243.30, 21,035.09 and 8,527.67 is: 11,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.30 : 21,035.09 = 8,527.67 : x
  2. Step 2: Convert to fraction form
    15,243.30/21,035.09 = 8,527.67/x
  3. Step 3: Cross multiply
    15,243.30x = 21,035.09 × 8,527.67
  4. Step 4: Simplify right side
    15,243.30x = 179,380,158.13
  5. Step 5: Solve for x
    x = 179,380,158.13/15,243.30
  6. Step 6: Final answer
    x = 11,767.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.