Home / 10,712.40-16,063.20-6,331.20

Finding the Fourth Proportional to 10,712.40, 16,063.20 and 6,331.20

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Solution

The fourth proportional to 10,712.40, 16,063.20 and 6,331.20 is: 9,493.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.40 : 16,063.20 = 6,331.20 : x
  2. Step 2: Convert to fraction form
    10,712.40/16,063.20 = 6,331.20/x
  3. Step 3: Cross multiply
    10,712.40x = 16,063.20 × 6,331.20
  4. Step 4: Simplify right side
    10,712.40x = 101,699,331.84
  5. Step 5: Solve for x
    x = 101,699,331.84/10,712.40
  6. Step 6: Final answer
    x = 9,493.61

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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.