Home / 17,145.59-23,660.16-10,778.72

Finding the Fourth Proportional to 17,145.59, 23,660.16 and 10,778.72

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Solution

The fourth proportional to 17,145.59, 23,660.16 and 10,778.72 is: 14,874.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.59 : 23,660.16 = 10,778.72 : x
  2. Step 2: Convert to fraction form
    17,145.59/23,660.16 = 10,778.72/x
  3. Step 3: Cross multiply
    17,145.59x = 23,660.16 × 10,778.72
  4. Step 4: Simplify right side
    17,145.59x = 255,026,121.49
  5. Step 5: Solve for x
    x = 255,026,121.49/17,145.59
  6. Step 6: Final answer
    x = 14,874.16

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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.