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Finding the Fourth Proportional to 8,999.70, 13,499.55 and 6,522.90

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Solution

The fourth proportional to 8,999.70, 13,499.55 and 6,522.90 is: 9,784.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.70 : 13,499.55 = 6,522.90 : x
  2. Step 2: Convert to fraction form
    8,999.70/13,499.55 = 6,522.90/x
  3. Step 3: Cross multiply
    8,999.70x = 13,499.55 × 6,522.90
  4. Step 4: Simplify right side
    8,999.70x = 88,056,214.70
  5. Step 5: Solve for x
    x = 88,056,214.70/8,999.70
  6. Step 6: Final answer
    x = 9,784.35

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Similar ratio
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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.