Home / 15,526.38-21,425.76-8,452.81

Finding the Fourth Proportional to 15,526.38, 21,425.76 and 8,452.81

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Solution

The fourth proportional to 15,526.38, 21,425.76 and 8,452.81 is: 11,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.38 : 21,425.76 = 8,452.81 : x
  2. Step 2: Convert to fraction form
    15,526.38/21,425.76 = 8,452.81/x
  3. Step 3: Cross multiply
    15,526.38x = 21,425.76 × 8,452.81
  4. Step 4: Simplify right side
    15,526.38x = 181,107,824.82
  5. Step 5: Solve for x
    x = 181,107,824.82/15,526.38
  6. Step 6: Final answer
    x = 11,664.52

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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.