Home / 10,528.79-15,716.13-9,283.28

Finding the Fourth Proportional to 10,528.79, 15,716.13 and 9,283.28

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Solution

The fourth proportional to 10,528.79, 15,716.13 and 9,283.28 is: 13,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.79 : 15,716.13 = 9,283.28 : x
  2. Step 2: Convert to fraction form
    10,528.79/15,716.13 = 9,283.28/x
  3. Step 3: Cross multiply
    10,528.79x = 15,716.13 × 9,283.28
  4. Step 4: Simplify right side
    10,528.79x = 145,897,121.91
  5. Step 5: Solve for x
    x = 145,897,121.91/10,528.79
  6. Step 6: Final answer
    x = 13,856.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.