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Finding the Fourth Proportional to 8,999.65, 13,503.57 and 4,620.18

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Solution

The fourth proportional to 8,999.65, 13,503.57 and 4,620.18 is: 6,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.65 : 13,503.57 = 4,620.18 : x
  2. Step 2: Convert to fraction form
    8,999.65/13,503.57 = 4,620.18/x
  3. Step 3: Cross multiply
    8,999.65x = 13,503.57 × 4,620.18
  4. Step 4: Simplify right side
    8,999.65x = 62,388,924.04
  5. Step 5: Solve for x
    x = 62,388,924.04/8,999.65
  6. Step 6: Final answer
    x = 6,932.37

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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.