Home / 15,453.28-21,324.24-9,164.56

Finding the Fourth Proportional to 15,453.28, 21,324.24 and 9,164.56

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Solution

The fourth proportional to 15,453.28, 21,324.24 and 9,164.56 is: 12,646.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.28 : 21,324.24 = 9,164.56 : x
  2. Step 2: Convert to fraction form
    15,453.28/21,324.24 = 9,164.56/x
  3. Step 3: Cross multiply
    15,453.28x = 21,324.24 × 9,164.56
  4. Step 4: Simplify right side
    15,453.28x = 195,427,276.93
  5. Step 5: Solve for x
    x = 195,427,276.93/15,453.28
  6. Step 6: Final answer
    x = 12,646.33

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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.