Home / 10,531.49-15,798.85-3,958.13

Finding the Fourth Proportional to 10,531.49, 15,798.85 and 3,958.13

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Solution

The fourth proportional to 10,531.49, 15,798.85 and 3,958.13 is: 5,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.49 : 15,798.85 = 3,958.13 : x
  2. Step 2: Convert to fraction form
    10,531.49/15,798.85 = 3,958.13/x
  3. Step 3: Cross multiply
    10,531.49x = 15,798.85 × 3,958.13
  4. Step 4: Simplify right side
    10,531.49x = 62,533,931.75
  5. Step 5: Solve for x
    x = 62,533,931.75/10,531.49
  6. Step 6: Final answer
    x = 5,937.81

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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.