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Finding the Fourth Proportional to 9,885.92, 14,828.87 and 3,312.11

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Solution

The fourth proportional to 9,885.92, 14,828.87 and 3,312.11 is: 4,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.92 : 14,828.87 = 3,312.11 : x
  2. Step 2: Convert to fraction form
    9,885.92/14,828.87 = 3,312.11/x
  3. Step 3: Cross multiply
    9,885.92x = 14,828.87 × 3,312.11
  4. Step 4: Simplify right side
    9,885.92x = 49,114,893.97
  5. Step 5: Solve for x
    x = 49,114,893.97/9,885.92
  6. Step 6: Final answer
    x = 4,968.17

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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.