Home / 17,143.28-23,657.08-9,691.44

Finding the Fourth Proportional to 17,143.28, 23,657.08 and 9,691.44

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Solution

The fourth proportional to 17,143.28, 23,657.08 and 9,691.44 is: 13,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,143.28 : 23,657.08 = 9,691.44 : x
  2. Step 2: Convert to fraction form
    17,143.28/23,657.08 = 9,691.44/x
  3. Step 3: Cross multiply
    17,143.28x = 23,657.08 × 9,691.44
  4. Step 4: Simplify right side
    17,143.28x = 229,271,171.40
  5. Step 5: Solve for x
    x = 229,271,171.40/17,143.28
  6. Step 6: Final answer
    x = 13,373.82

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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.