Home / 9,988.12-14,981.28-4,441.72

Finding the Fourth Proportional to 9,988.12, 14,981.28 and 4,441.72

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Solution

The fourth proportional to 9,988.12, 14,981.28 and 4,441.72 is: 6,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.12 : 14,981.28 = 4,441.72 : x
  2. Step 2: Convert to fraction form
    9,988.12/14,981.28 = 4,441.72/x
  3. Step 3: Cross multiply
    9,988.12x = 14,981.28 × 4,441.72
  4. Step 4: Simplify right side
    9,988.12x = 66,542,651.00
  5. Step 5: Solve for x
    x = 66,542,651.00/9,988.12
  6. Step 6: Final answer
    x = 6,662.18

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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.