Home / 10,385.92-15,565.92-5,193.28

Finding the Fourth Proportional to 10,385.92, 15,565.92 and 5,193.28

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Solution

The fourth proportional to 10,385.92, 15,565.92 and 5,193.28 is: 7,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.92 : 15,565.92 = 5,193.28 : x
  2. Step 2: Convert to fraction form
    10,385.92/15,565.92 = 5,193.28/x
  3. Step 3: Cross multiply
    10,385.92x = 15,565.92 × 5,193.28
  4. Step 4: Simplify right side
    10,385.92x = 80,838,181.02
  5. Step 5: Solve for x
    x = 80,838,181.02/10,385.92
  6. Step 6: Final answer
    x = 7,783.44

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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.