Home / 17,887.76-24,686.36-9,930.88

Finding the Fourth Proportional to 17,887.76, 24,686.36 and 9,930.88

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Solution

The fourth proportional to 17,887.76, 24,686.36 and 9,930.88 is: 13,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,887.76 : 24,686.36 = 9,930.88 : x
  2. Step 2: Convert to fraction form
    17,887.76/24,686.36 = 9,930.88/x
  3. Step 3: Cross multiply
    17,887.76x = 24,686.36 × 9,930.88
  4. Step 4: Simplify right side
    17,887.76x = 245,157,278.80
  5. Step 5: Solve for x
    x = 245,157,278.80/17,887.76
  6. Step 6: Final answer
    x = 13,705.31

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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.