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Finding the Fourth Proportional to 8,999.67, 13,508.16 and 4,385.91

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Solution

The fourth proportional to 8,999.67, 13,508.16 and 4,385.91 is: 6,583.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.67 : 13,508.16 = 4,385.91 : x
  2. Step 2: Convert to fraction form
    8,999.67/13,508.16 = 4,385.91/x
  3. Step 3: Cross multiply
    8,999.67x = 13,508.16 × 4,385.91
  4. Step 4: Simplify right side
    8,999.67x = 59,245,574.03
  5. Step 5: Solve for x
    x = 59,245,574.03/8,999.67
  6. Step 6: Final answer
    x = 6,583.08

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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.