Home / 8,731.47-12,048.90-4,902.83

Finding the Fourth Proportional to 8,731.47, 12,048.90 and 4,902.83

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Solution

The fourth proportional to 8,731.47, 12,048.90 and 4,902.83 is: 6,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.47 : 12,048.90 = 4,902.83 : x
  2. Step 2: Convert to fraction form
    8,731.47/12,048.90 = 4,902.83/x
  3. Step 3: Cross multiply
    8,731.47x = 12,048.90 × 4,902.83
  4. Step 4: Simplify right side
    8,731.47x = 59,073,648.14
  5. Step 5: Solve for x
    x = 59,073,648.14/8,731.47
  6. Step 6: Final answer
    x = 6,765.60

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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.