Home / 11,278.90-15,565.89-6,244.30

Finding the Fourth Proportional to 11,278.90, 15,565.89 and 6,244.30

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Solution

The fourth proportional to 11,278.90, 15,565.89 and 6,244.30 is: 8,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.90 : 15,565.89 = 6,244.30 : x
  2. Step 2: Convert to fraction form
    11,278.90/15,565.89 = 6,244.30/x
  3. Step 3: Cross multiply
    11,278.90x = 15,565.89 × 6,244.30
  4. Step 4: Simplify right side
    11,278.90x = 97,198,086.93
  5. Step 5: Solve for x
    x = 97,198,086.93/11,278.90
  6. Step 6: Final answer
    x = 8,617.69

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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.