Home / 15,470.94-21,349.78-8,397.22

Finding the Fourth Proportional to 15,470.94, 21,349.78 and 8,397.22

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Solution

The fourth proportional to 15,470.94, 21,349.78 and 8,397.22 is: 11,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.94 : 21,349.78 = 8,397.22 : x
  2. Step 2: Convert to fraction form
    15,470.94/21,349.78 = 8,397.22/x
  3. Step 3: Cross multiply
    15,470.94x = 21,349.78 × 8,397.22
  4. Step 4: Simplify right side
    15,470.94x = 179,278,799.61
  5. Step 5: Solve for x
    x = 179,278,799.61/15,470.94
  6. Step 6: Final answer
    x = 11,588.10

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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.