Home / 15,122.32-22,581.56-12,354.46

Finding the Fourth Proportional to 15,122.32, 22,581.56 and 12,354.46

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Solution

The fourth proportional to 15,122.32, 22,581.56 and 12,354.46 is: 18,448.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.32 : 22,581.56 = 12,354.46 : x
  2. Step 2: Convert to fraction form
    15,122.32/22,581.56 = 12,354.46/x
  3. Step 3: Cross multiply
    15,122.32x = 22,581.56 × 12,354.46
  4. Step 4: Simplify right side
    15,122.32x = 278,982,979.76
  5. Step 5: Solve for x
    x = 278,982,979.76/15,122.32
  6. Step 6: Final answer
    x = 18,448.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.