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Finding the Fourth Proportional to 9,379.93, 14,079.81 and 9,168.16

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Solution

The fourth proportional to 9,379.93, 14,079.81 and 9,168.16 is: 13,761.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.93 : 14,079.81 = 9,168.16 : x
  2. Step 2: Convert to fraction form
    9,379.93/14,079.81 = 9,168.16/x
  3. Step 3: Cross multiply
    9,379.93x = 14,079.81 × 9,168.16
  4. Step 4: Simplify right side
    9,379.93x = 129,085,905.01
  5. Step 5: Solve for x
    x = 129,085,905.01/9,379.93
  6. Step 6: Final answer
    x = 13,761.93

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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.