Home / 10,938.06-15,092.10-6,458.76

Finding the Fourth Proportional to 10,938.06, 15,092.10 and 6,458.76

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Solution

The fourth proportional to 10,938.06, 15,092.10 and 6,458.76 is: 8,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.06 : 15,092.10 = 6,458.76 : x
  2. Step 2: Convert to fraction form
    10,938.06/15,092.10 = 6,458.76/x
  3. Step 3: Cross multiply
    10,938.06x = 15,092.10 × 6,458.76
  4. Step 4: Simplify right side
    10,938.06x = 97,476,251.80
  5. Step 5: Solve for x
    x = 97,476,251.80/10,938.06
  6. Step 6: Final answer
    x = 8,911.66

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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.