Home / 19,146.25-28,727.13-8,608.90

Finding the Fourth Proportional to 19,146.25, 28,727.13 and 8,608.90

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Solution

The fourth proportional to 19,146.25, 28,727.13 and 8,608.90 is: 12,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.25 : 28,727.13 = 8,608.90 : x
  2. Step 2: Convert to fraction form
    19,146.25/28,727.13 = 8,608.90/x
  3. Step 3: Cross multiply
    19,146.25x = 28,727.13 × 8,608.90
  4. Step 4: Simplify right side
    19,146.25x = 247,308,989.46
  5. Step 5: Solve for x
    x = 247,308,989.46/19,146.25
  6. Step 6: Final answer
    x = 12,916.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.