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Finding the Fourth Proportional to 9,440.98, 13,089.11 and 8,916.10

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Solution

The fourth proportional to 9,440.98, 13,089.11 and 8,916.10 is: 12,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,440.98 : 13,089.11 = 8,916.10 : x
  2. Step 2: Convert to fraction form
    9,440.98/13,089.11 = 8,916.10/x
  3. Step 3: Cross multiply
    9,440.98x = 13,089.11 × 8,916.10
  4. Step 4: Simplify right side
    9,440.98x = 116,703,813.67
  5. Step 5: Solve for x
    x = 116,703,813.67/9,440.98
  6. Step 6: Final answer
    x = 12,361.41

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.