Home / 10,938.10-16,407.15-6,553.30

Finding the Fourth Proportional to 10,938.10, 16,407.15 and 6,553.30

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Solution

The fourth proportional to 10,938.10, 16,407.15 and 6,553.30 is: 9,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.10 : 16,407.15 = 6,553.30 : x
  2. Step 2: Convert to fraction form
    10,938.10/16,407.15 = 6,553.30/x
  3. Step 3: Cross multiply
    10,938.10x = 16,407.15 × 6,553.30
  4. Step 4: Simplify right side
    10,938.10x = 107,520,976.10
  5. Step 5: Solve for x
    x = 107,520,976.10/10,938.10
  6. Step 6: Final answer
    x = 9,829.95

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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.