Home / 10,385.14-14,331.26-5,669.50

Finding the Fourth Proportional to 10,385.14, 14,331.26 and 5,669.50

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Solution

The fourth proportional to 10,385.14, 14,331.26 and 5,669.50 is: 7,823.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.14 : 14,331.26 = 5,669.50 : x
  2. Step 2: Convert to fraction form
    10,385.14/14,331.26 = 5,669.50/x
  3. Step 3: Cross multiply
    10,385.14x = 14,331.26 × 5,669.50
  4. Step 4: Simplify right side
    10,385.14x = 81,251,078.57
  5. Step 5: Solve for x
    x = 81,251,078.57/10,385.14
  6. Step 6: Final answer
    x = 7,823.78

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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.