Home / 11,756.23-17,679.10-9,389.61

Finding the Fourth Proportional to 11,756.23, 17,679.10 and 9,389.61

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Solution

The fourth proportional to 11,756.23, 17,679.10 and 9,389.61 is: 14,120.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,756.23 : 17,679.10 = 9,389.61 : x
  2. Step 2: Convert to fraction form
    11,756.23/17,679.10 = 9,389.61/x
  3. Step 3: Cross multiply
    11,756.23x = 17,679.10 × 9,389.61
  4. Step 4: Simplify right side
    11,756.23x = 165,999,854.15
  5. Step 5: Solve for x
    x = 165,999,854.15/11,756.23
  6. Step 6: Final answer
    x = 14,120.16

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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.