Home / 10,998.98-15,177.60-6,460.95

Finding the Fourth Proportional to 10,998.98, 15,177.60 and 6,460.95

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Solution

The fourth proportional to 10,998.98, 15,177.60 and 6,460.95 is: 8,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.98 : 15,177.60 = 6,460.95 : x
  2. Step 2: Convert to fraction form
    10,998.98/15,177.60 = 6,460.95/x
  3. Step 3: Cross multiply
    10,998.98x = 15,177.60 × 6,460.95
  4. Step 4: Simplify right side
    10,998.98x = 98,061,714.72
  5. Step 5: Solve for x
    x = 98,061,714.72/10,998.98
  6. Step 6: Final answer
    x = 8,915.53

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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.