Home / 16,728.74-23,085.15-9,174.68

Finding the Fourth Proportional to 16,728.74, 23,085.15 and 9,174.68

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Solution

The fourth proportional to 16,728.74, 23,085.15 and 9,174.68 is: 12,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.74 : 23,085.15 = 9,174.68 : x
  2. Step 2: Convert to fraction form
    16,728.74/23,085.15 = 9,174.68/x
  3. Step 3: Cross multiply
    16,728.74x = 23,085.15 × 9,174.68
  4. Step 4: Simplify right side
    16,728.74x = 211,798,864.00
  5. Step 5: Solve for x
    x = 211,798,864.00/16,728.74
  6. Step 6: Final answer
    x = 12,660.78

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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.