Home / 11,151.61-15,388.10-6,437.41

Finding the Fourth Proportional to 11,151.61, 15,388.10 and 6,437.41

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Solution

The fourth proportional to 11,151.61, 15,388.10 and 6,437.41 is: 8,882.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.61 : 15,388.10 = 6,437.41 : x
  2. Step 2: Convert to fraction form
    11,151.61/15,388.10 = 6,437.41/x
  3. Step 3: Cross multiply
    11,151.61x = 15,388.10 × 6,437.41
  4. Step 4: Simplify right side
    11,151.61x = 99,059,486.44
  5. Step 5: Solve for x
    x = 99,059,486.44/11,151.61
  6. Step 6: Final answer
    x = 8,882.98

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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.