Home / 15,607.28-21,532.87-8,800.45

Finding the Fourth Proportional to 15,607.28, 21,532.87 and 8,800.45

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Solution

The fourth proportional to 15,607.28, 21,532.87 and 8,800.45 is: 12,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607.28 : 21,532.87 = 8,800.45 : x
  2. Step 2: Convert to fraction form
    15,607.28/21,532.87 = 8,800.45/x
  3. Step 3: Cross multiply
    15,607.28x = 21,532.87 × 8,800.45
  4. Step 4: Simplify right side
    15,607.28x = 189,498,902.96
  5. Step 5: Solve for x
    x = 189,498,902.96/15,607.28
  6. Step 6: Final answer
    x = 12,141.70

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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.