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Finding the Fourth Proportional to 8,999.76, 13,506.57 and 5,878.92

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Solution

The fourth proportional to 8,999.76, 13,506.57 and 5,878.92 is: 8,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.76 : 13,506.57 = 5,878.92 : x
  2. Step 2: Convert to fraction form
    8,999.76/13,506.57 = 5,878.92/x
  3. Step 3: Cross multiply
    8,999.76x = 13,506.57 × 5,878.92
  4. Step 4: Simplify right side
    8,999.76x = 79,404,044.50
  5. Step 5: Solve for x
    x = 79,404,044.50/8,999.76
  6. Step 6: Final answer
    x = 8,822.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.