Home / 15,470.65-21,349.56-8,397.08

Finding the Fourth Proportional to 15,470.65, 21,349.56 and 8,397.08

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Solution

The fourth proportional to 15,470.65, 21,349.56 and 8,397.08 is: 11,588.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.65 : 21,349.56 = 8,397.08 : x
  2. Step 2: Convert to fraction form
    15,470.65/21,349.56 = 8,397.08/x
  3. Step 3: Cross multiply
    15,470.65x = 21,349.56 × 8,397.08
  4. Step 4: Simplify right side
    15,470.65x = 179,273,963.28
  5. Step 5: Solve for x
    x = 179,273,963.28/15,470.65
  6. Step 6: Final answer
    x = 11,588.00

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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.