Home / 16,781.81-23,158.41-9,228.13

Finding the Fourth Proportional to 16,781.81, 23,158.41 and 9,228.13

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Solution

The fourth proportional to 16,781.81, 23,158.41 and 9,228.13 is: 12,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.81 : 23,158.41 = 9,228.13 : x
  2. Step 2: Convert to fraction form
    16,781.81/23,158.41 = 9,228.13/x
  3. Step 3: Cross multiply
    16,781.81x = 23,158.41 × 9,228.13
  4. Step 4: Simplify right side
    16,781.81x = 213,708,881.79
  5. Step 5: Solve for x
    x = 213,708,881.79/16,781.81
  6. Step 6: Final answer
    x = 12,734.55

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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.