Home / 8,754.18-12,078.63-5,614.62

Finding the Fourth Proportional to 8,754.18, 12,078.63 and 5,614.62

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Solution

The fourth proportional to 8,754.18, 12,078.63 and 5,614.62 is: 7,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.18 : 12,078.63 = 5,614.62 : x
  2. Step 2: Convert to fraction form
    8,754.18/12,078.63 = 5,614.62/x
  3. Step 3: Cross multiply
    8,754.18x = 12,078.63 × 5,614.62
  4. Step 4: Simplify right side
    8,754.18x = 67,816,917.57
  5. Step 5: Solve for x
    x = 67,816,917.57/8,754.18
  6. Step 6: Final answer
    x = 7,746.80

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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.