Home / 8,730.62-12,047.91-5,195.42

Finding the Fourth Proportional to 8,730.62, 12,047.91 and 5,195.42

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Solution

The fourth proportional to 8,730.62, 12,047.91 and 5,195.42 is: 7,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.62 : 12,047.91 = 5,195.42 : x
  2. Step 2: Convert to fraction form
    8,730.62/12,047.91 = 5,195.42/x
  3. Step 3: Cross multiply
    8,730.62x = 12,047.91 × 5,195.42
  4. Step 4: Simplify right side
    8,730.62x = 62,593,952.57
  5. Step 5: Solve for x
    x = 62,593,952.57/8,730.62
  6. Step 6: Final answer
    x = 7,169.47

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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.