Home / 17,089.28-23,587.20-9,639.68

Finding the Fourth Proportional to 17,089.28, 23,587.20 and 9,639.68

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Solution

The fourth proportional to 17,089.28, 23,587.20 and 9,639.68 is: 13,305.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,089.28 : 23,587.20 = 9,639.68 : x
  2. Step 2: Convert to fraction form
    17,089.28/23,587.20 = 9,639.68/x
  3. Step 3: Cross multiply
    17,089.28x = 23,587.20 × 9,639.68
  4. Step 4: Simplify right side
    17,089.28x = 227,373,060.10
  5. Step 5: Solve for x
    x = 227,373,060.10/17,089.28
  6. Step 6: Final answer
    x = 13,305.01

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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.