Home / 10,902.45-15,045.26-6,186.90

Finding the Fourth Proportional to 10,902.45, 15,045.26 and 6,186.90

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Solution

The fourth proportional to 10,902.45, 15,045.26 and 6,186.90 is: 8,537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902.45 : 15,045.26 = 6,186.90 : x
  2. Step 2: Convert to fraction form
    10,902.45/15,045.26 = 6,186.90/x
  3. Step 3: Cross multiply
    10,902.45x = 15,045.26 × 6,186.90
  4. Step 4: Simplify right side
    10,902.45x = 93,083,488.16
  5. Step 5: Solve for x
    x = 93,083,488.16/10,902.45
  6. Step 6: Final answer
    x = 8,537.85

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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.