Home / 11,189.86-15,442.35-6,154.30

Finding the Fourth Proportional to 11,189.86, 15,442.35 and 6,154.30

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Solution

The fourth proportional to 11,189.86, 15,442.35 and 6,154.30 is: 8,493.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.86 : 15,442.35 = 6,154.30 : x
  2. Step 2: Convert to fraction form
    11,189.86/15,442.35 = 6,154.30/x
  3. Step 3: Cross multiply
    11,189.86x = 15,442.35 × 6,154.30
  4. Step 4: Simplify right side
    11,189.86x = 95,036,854.61
  5. Step 5: Solve for x
    x = 95,036,854.61/11,189.86
  6. Step 6: Final answer
    x = 8,493.12

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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.