Home / 17,857.20-24,642.60-9,899.28

Finding the Fourth Proportional to 17,857.20, 24,642.60 and 9,899.28

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Solution

The fourth proportional to 17,857.20, 24,642.60 and 9,899.28 is: 13,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.20 : 24,642.60 = 9,899.28 : x
  2. Step 2: Convert to fraction form
    17,857.20/24,642.60 = 9,899.28/x
  3. Step 3: Cross multiply
    17,857.20x = 24,642.60 × 9,899.28
  4. Step 4: Simplify right side
    17,857.20x = 243,943,997.33
  5. Step 5: Solve for x
    x = 243,943,997.33/17,857.20
  6. Step 6: Final answer
    x = 13,660.82

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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.