Home / 16,781.79-23,158.40-9,228.14

Finding the Fourth Proportional to 16,781.79, 23,158.40 and 9,228.14

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Solution

The fourth proportional to 16,781.79, 23,158.40 and 9,228.14 is: 12,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.79 : 23,158.40 = 9,228.14 : x
  2. Step 2: Convert to fraction form
    16,781.79/23,158.40 = 9,228.14/x
  3. Step 3: Cross multiply
    16,781.79x = 23,158.40 × 9,228.14
  4. Step 4: Simplify right side
    16,781.79x = 213,708,864.65
  5. Step 5: Solve for x
    x = 213,708,864.65/16,781.79
  6. Step 6: Final answer
    x = 12,734.57

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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.