Home / 12,488.97-18,727.15-4,166.02

Finding the Fourth Proportional to 12,488.97, 18,727.15 and 4,166.02

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Solution

The fourth proportional to 12,488.97, 18,727.15 and 4,166.02 is: 6,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.97 : 18,727.15 = 4,166.02 : x
  2. Step 2: Convert to fraction form
    12,488.97/18,727.15 = 4,166.02/x
  3. Step 3: Cross multiply
    12,488.97x = 18,727.15 × 4,166.02
  4. Step 4: Simplify right side
    12,488.97x = 78,017,681.44
  5. Step 5: Solve for x
    x = 78,017,681.44/12,488.97
  6. Step 6: Final answer
    x = 6,246.93

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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.