Home / 13,609.71-20,402.25-4,842.57

Finding the Fourth Proportional to 13,609.71, 20,402.25 and 4,842.57

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Solution

The fourth proportional to 13,609.71, 20,402.25 and 4,842.57 is: 7,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.71 : 20,402.25 = 4,842.57 : x
  2. Step 2: Convert to fraction form
    13,609.71/20,402.25 = 4,842.57/x
  3. Step 3: Cross multiply
    13,609.71x = 20,402.25 × 4,842.57
  4. Step 4: Simplify right side
    13,609.71x = 98,799,323.78
  5. Step 5: Solve for x
    x = 98,799,323.78/13,609.71
  6. Step 6: Final answer
    x = 7,259.47

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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.