Home / 10,526.90-15,713.29-9,281.38

Finding the Fourth Proportional to 10,526.90, 15,713.29 and 9,281.38

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Solution

The fourth proportional to 10,526.90, 15,713.29 and 9,281.38 is: 13,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,526.90 : 15,713.29 = 9,281.38 : x
  2. Step 2: Convert to fraction form
    10,526.90/15,713.29 = 9,281.38/x
  3. Step 3: Cross multiply
    10,526.90x = 15,713.29 × 9,281.38
  4. Step 4: Simplify right side
    10,526.90x = 145,841,015.54
  5. Step 5: Solve for x
    x = 145,841,015.54/10,526.90
  6. Step 6: Final answer
    x = 13,854.13

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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.