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Finding the Fourth Proportional to 8,989.98, 13,482.80 and 4,605.18

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Solution

The fourth proportional to 8,989.98, 13,482.80 and 4,605.18 is: 6,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.98 : 13,482.80 = 4,605.18 : x
  2. Step 2: Convert to fraction form
    8,989.98/13,482.80 = 4,605.18/x
  3. Step 3: Cross multiply
    8,989.98x = 13,482.80 × 4,605.18
  4. Step 4: Simplify right side
    8,989.98x = 62,090,653.49
  5. Step 5: Solve for x
    x = 62,090,653.49/8,989.98
  6. Step 6: Final answer
    x = 6,906.65

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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.