Home / 8,697.48-12,001.42-4,920.85

Finding the Fourth Proportional to 8,697.48, 12,001.42 and 4,920.85

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Solution

The fourth proportional to 8,697.48, 12,001.42 and 4,920.85 is: 6,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.48 : 12,001.42 = 4,920.85 : x
  2. Step 2: Convert to fraction form
    8,697.48/12,001.42 = 4,920.85/x
  3. Step 3: Cross multiply
    8,697.48x = 12,001.42 × 4,920.85
  4. Step 4: Simplify right side
    8,697.48x = 59,057,181.08
  5. Step 5: Solve for x
    x = 59,057,181.08/8,697.48
  6. Step 6: Final answer
    x = 6,790.15

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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.