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Finding the Fourth Proportional to 8,982.86, 13,395.16 and 8,359.57

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Solution

The fourth proportional to 8,982.86, 13,395.16 and 8,359.57 is: 12,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.86 : 13,395.16 = 8,359.57 : x
  2. Step 2: Convert to fraction form
    8,982.86/13,395.16 = 8,359.57/x
  3. Step 3: Cross multiply
    8,982.86x = 13,395.16 × 8,359.57
  4. Step 4: Simplify right side
    8,982.86x = 111,977,668.91
  5. Step 5: Solve for x
    x = 111,977,668.91/8,982.86
  6. Step 6: Final answer
    x = 12,465.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.