Home / 15,358.25-21,195.25-9,388.95

Finding the Fourth Proportional to 15,358.25, 21,195.25 and 9,388.95

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Solution

The fourth proportional to 15,358.25, 21,195.25 and 9,388.95 is: 12,957.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358.25 : 21,195.25 = 9,388.95 : x
  2. Step 2: Convert to fraction form
    15,358.25/21,195.25 = 9,388.95/x
  3. Step 3: Cross multiply
    15,358.25x = 21,195.25 × 9,388.95
  4. Step 4: Simplify right side
    15,358.25x = 199,001,119.02
  5. Step 5: Solve for x
    x = 199,001,119.02/15,358.25
  6. Step 6: Final answer
    x = 12,957.28

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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.