Home / 8,731.12-12,048.60-5,195.92

Finding the Fourth Proportional to 8,731.12, 12,048.60 and 5,195.92

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Solution

The fourth proportional to 8,731.12, 12,048.60 and 5,195.92 is: 7,170.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.12 : 12,048.60 = 5,195.92 : x
  2. Step 2: Convert to fraction form
    8,731.12/12,048.60 = 5,195.92/x
  3. Step 3: Cross multiply
    8,731.12x = 12,048.60 × 5,195.92
  4. Step 4: Simplify right side
    8,731.12x = 62,603,561.71
  5. Step 5: Solve for x
    x = 62,603,561.71/8,731.12
  6. Step 6: Final answer
    x = 7,170.16

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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.