Home / 11,417.48-15,755.56-6,380.72

Finding the Fourth Proportional to 11,417.48, 15,755.56 and 6,380.72

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Solution

The fourth proportional to 11,417.48, 15,755.56 and 6,380.72 is: 8,805.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.48 : 15,755.56 = 6,380.72 : x
  2. Step 2: Convert to fraction form
    11,417.48/15,755.56 = 6,380.72/x
  3. Step 3: Cross multiply
    11,417.48x = 15,755.56 × 6,380.72
  4. Step 4: Simplify right side
    11,417.48x = 100,531,816.80
  5. Step 5: Solve for x
    x = 100,531,816.80/11,417.48
  6. Step 6: Final answer
    x = 8,805.08

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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.