Home / 15,470.66-21,349.53-8,397.08

Finding the Fourth Proportional to 15,470.66, 21,349.53 and 8,397.08

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Solution

The fourth proportional to 15,470.66, 21,349.53 and 8,397.08 is: 11,587.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.66 : 21,349.53 = 8,397.08 : x
  2. Step 2: Convert to fraction form
    15,470.66/21,349.53 = 8,397.08/x
  3. Step 3: Cross multiply
    15,470.66x = 21,349.53 × 8,397.08
  4. Step 4: Simplify right side
    15,470.66x = 179,273,711.37
  5. Step 5: Solve for x
    x = 179,273,711.37/15,470.66
  6. Step 6: Final answer
    x = 11,587.98

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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.