Home / 11,218.95-15,482.15-6,505.96

Finding the Fourth Proportional to 11,218.95, 15,482.15 and 6,505.96

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Solution

The fourth proportional to 11,218.95, 15,482.15 and 6,505.96 is: 8,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.95 : 15,482.15 = 6,505.96 : x
  2. Step 2: Convert to fraction form
    11,218.95/15,482.15 = 6,505.96/x
  3. Step 3: Cross multiply
    11,218.95x = 15,482.15 × 6,505.96
  4. Step 4: Simplify right side
    11,218.95x = 100,726,248.61
  5. Step 5: Solve for x
    x = 100,726,248.61/11,218.95
  6. Step 6: Final answer
    x = 8,978.22

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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.