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Finding the Fourth Proportional to 9,988.83, 13,786.27 and 9,545.96

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Solution

The fourth proportional to 9,988.83, 13,786.27 and 9,545.96 is: 13,175.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.83 : 13,786.27 = 9,545.96 : x
  2. Step 2: Convert to fraction form
    9,988.83/13,786.27 = 9,545.96/x
  3. Step 3: Cross multiply
    9,988.83x = 13,786.27 × 9,545.96
  4. Step 4: Simplify right side
    9,988.83x = 131,603,192.57
  5. Step 5: Solve for x
    x = 131,603,192.57/9,988.83
  6. Step 6: Final answer
    x = 13,175.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.