Home / 15,569.28-21,488.36-9,195.44

Finding the Fourth Proportional to 15,569.28, 21,488.36 and 9,195.44

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Solution

The fourth proportional to 15,569.28, 21,488.36 and 9,195.44 is: 12,691.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,569.28 : 21,488.36 = 9,195.44 : x
  2. Step 2: Convert to fraction form
    15,569.28/21,488.36 = 9,195.44/x
  3. Step 3: Cross multiply
    15,569.28x = 21,488.36 × 9,195.44
  4. Step 4: Simplify right side
    15,569.28x = 197,594,771.66
  5. Step 5: Solve for x
    x = 197,594,771.66/15,569.28
  6. Step 6: Final answer
    x = 12,691.32

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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.