Home / 12,580.92-18,864.90-4,680.18

Finding the Fourth Proportional to 12,580.92, 18,864.90 and 4,680.18

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Solution

The fourth proportional to 12,580.92, 18,864.90 and 4,680.18 is: 7,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.92 : 18,864.90 = 4,680.18 : x
  2. Step 2: Convert to fraction form
    12,580.92/18,864.90 = 4,680.18/x
  3. Step 3: Cross multiply
    12,580.92x = 18,864.90 × 4,680.18
  4. Step 4: Simplify right side
    12,580.92x = 88,291,127.68
  5. Step 5: Solve for x
    x = 88,291,127.68/12,580.92
  6. Step 6: Final answer
    x = 7,017.86

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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.