Home / 10,863.38-14,988.03-6,385.70

Finding the Fourth Proportional to 10,863.38, 14,988.03 and 6,385.70

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Solution

The fourth proportional to 10,863.38, 14,988.03 and 6,385.70 is: 8,810.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.38 : 14,988.03 = 6,385.70 : x
  2. Step 2: Convert to fraction form
    10,863.38/14,988.03 = 6,385.70/x
  3. Step 3: Cross multiply
    10,863.38x = 14,988.03 × 6,385.70
  4. Step 4: Simplify right side
    10,863.38x = 95,709,063.17
  5. Step 5: Solve for x
    x = 95,709,063.17/10,863.38
  6. Step 6: Final answer
    x = 8,810.25

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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.