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Finding the Fourth Proportional to 9,958.84, 14,940.96 and 8,870.80

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Solution

The fourth proportional to 9,958.84, 14,940.96 and 8,870.80 is: 13,308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,958.84 : 14,940.96 = 8,870.80 : x
  2. Step 2: Convert to fraction form
    9,958.84/14,940.96 = 8,870.80/x
  3. Step 3: Cross multiply
    9,958.84x = 14,940.96 × 8,870.80
  4. Step 4: Simplify right side
    9,958.84x = 132,538,267.97
  5. Step 5: Solve for x
    x = 132,538,267.97/9,958.84
  6. Step 6: Final answer
    x = 13,308.61

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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.