Home / 8,861.86-12,225.45-5,878.18

Finding the Fourth Proportional to 8,861.86, 12,225.45 and 5,878.18

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Solution

The fourth proportional to 8,861.86, 12,225.45 and 5,878.18 is: 8,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.86 : 12,225.45 = 5,878.18 : x
  2. Step 2: Convert to fraction form
    8,861.86/12,225.45 = 5,878.18/x
  3. Step 3: Cross multiply
    8,861.86x = 12,225.45 × 5,878.18
  4. Step 4: Simplify right side
    8,861.86x = 71,863,395.68
  5. Step 5: Solve for x
    x = 71,863,395.68/8,861.86
  6. Step 6: Final answer
    x = 8,109.29

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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.