Home / 15,930.32-21,983.40-8,856.24

Finding the Fourth Proportional to 15,930.32, 21,983.40 and 8,856.24

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Solution

The fourth proportional to 15,930.32, 21,983.40 and 8,856.24 is: 12,221.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,930.32 : 21,983.40 = 8,856.24 : x
  2. Step 2: Convert to fraction form
    15,930.32/21,983.40 = 8,856.24/x
  3. Step 3: Cross multiply
    15,930.32x = 21,983.40 × 8,856.24
  4. Step 4: Simplify right side
    15,930.32x = 194,690,266.42
  5. Step 5: Solve for x
    x = 194,690,266.42/15,930.32
  6. Step 6: Final answer
    x = 12,221.37

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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.