Home / 8,754.34-13,128.66-2,909.38

Finding the Fourth Proportional to 8,754.34, 13,128.66 and 2,909.38

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Solution

The fourth proportional to 8,754.34, 13,128.66 and 2,909.38 is: 4,363.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.34 : 13,128.66 = 2,909.38 : x
  2. Step 2: Convert to fraction form
    8,754.34/13,128.66 = 2,909.38/x
  3. Step 3: Cross multiply
    8,754.34x = 13,128.66 × 2,909.38
  4. Step 4: Simplify right side
    8,754.34x = 38,196,260.83
  5. Step 5: Solve for x
    x = 38,196,260.83/8,754.34
  6. Step 6: Final answer
    x = 4,363.12

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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.