Home / 17,857.38-24,643.20-9,899.70

Finding the Fourth Proportional to 17,857.38, 24,643.20 and 9,899.70

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Solution

The fourth proportional to 17,857.38, 24,643.20 and 9,899.70 is: 13,661.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.38 : 24,643.20 = 9,899.70 : x
  2. Step 2: Convert to fraction form
    17,857.38/24,643.20 = 9,899.70/x
  3. Step 3: Cross multiply
    17,857.38x = 24,643.20 × 9,899.70
  4. Step 4: Simplify right side
    17,857.38x = 243,960,287.04
  5. Step 5: Solve for x
    x = 243,960,287.04/17,857.38
  6. Step 6: Final answer
    x = 13,661.59

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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.