Home / 10,424.87-14,380.48-6,171.78

Finding the Fourth Proportional to 10,424.87, 14,380.48 and 6,171.78

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Solution

The fourth proportional to 10,424.87, 14,380.48 and 6,171.78 is: 8,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,424.87 : 14,380.48 = 6,171.78 : x
  2. Step 2: Convert to fraction form
    10,424.87/14,380.48 = 6,171.78/x
  3. Step 3: Cross multiply
    10,424.87x = 14,380.48 × 6,171.78
  4. Step 4: Simplify right side
    10,424.87x = 88,753,158.85
  5. Step 5: Solve for x
    x = 88,753,158.85/10,424.87
  6. Step 6: Final answer
    x = 8,513.60

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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.