Home / 15,560.11-21,472.10-8,844.80

Finding the Fourth Proportional to 15,560.11, 21,472.10 and 8,844.80

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Solution

The fourth proportional to 15,560.11, 21,472.10 and 8,844.80 is: 12,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.11 : 21,472.10 = 8,844.80 : x
  2. Step 2: Convert to fraction form
    15,560.11/21,472.10 = 8,844.80/x
  3. Step 3: Cross multiply
    15,560.11x = 21,472.10 × 8,844.80
  4. Step 4: Simplify right side
    15,560.11x = 189,916,439.54
  5. Step 5: Solve for x
    x = 189,916,439.54/15,560.11
  6. Step 6: Final answer
    x = 12,205.34

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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.