Home / 12,078.65-18,114.20-5,834.78

Finding the Fourth Proportional to 12,078.65, 18,114.20 and 5,834.78

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Solution

The fourth proportional to 12,078.65, 18,114.20 and 5,834.78 is: 8,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.65 : 18,114.20 = 5,834.78 : x
  2. Step 2: Convert to fraction form
    12,078.65/18,114.20 = 5,834.78/x
  3. Step 3: Cross multiply
    12,078.65x = 18,114.20 × 5,834.78
  4. Step 4: Simplify right side
    12,078.65x = 105,692,252.13
  5. Step 5: Solve for x
    x = 105,692,252.13/12,078.65
  6. Step 6: Final answer
    x = 8,750.34

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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.