Home / 15,789.28-23,677.16-5,921.72

Finding the Fourth Proportional to 15,789.28, 23,677.16 and 5,921.72

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Solution

The fourth proportional to 15,789.28, 23,677.16 and 5,921.72 is: 8,880.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.28 : 23,677.16 = 5,921.72 : x
  2. Step 2: Convert to fraction form
    15,789.28/23,677.16 = 5,921.72/x
  3. Step 3: Cross multiply
    15,789.28x = 23,677.16 × 5,921.72
  4. Step 4: Simplify right side
    15,789.28x = 140,209,511.92
  5. Step 5: Solve for x
    x = 140,209,511.92/15,789.28
  6. Step 6: Final answer
    x = 8,880.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.