Home / 15,502.47-21,367.38-11,867.28

Finding the Fourth Proportional to 15,502.47, 21,367.38 and 11,867.28

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Solution

The fourth proportional to 15,502.47, 21,367.38 and 11,867.28 is: 16,356.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,502.47 : 21,367.38 = 11,867.28 : x
  2. Step 2: Convert to fraction form
    15,502.47/21,367.38 = 11,867.28/x
  3. Step 3: Cross multiply
    15,502.47x = 21,367.38 × 11,867.28
  4. Step 4: Simplify right side
    15,502.47x = 253,572,681.33
  5. Step 5: Solve for x
    x = 253,572,681.33/15,502.47
  6. Step 6: Final answer
    x = 16,356.92

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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.