Home / 12,377.92-17,068.32-9,360

Finding the Fourth Proportional to 12,377.92, 17,068.32 and 9,360

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Solution

The fourth proportional to 12,377.92, 17,068.32 and 9,360 is: 12,906.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.92 : 17,068.32 = 9,360 : x
  2. Step 2: Convert to fraction form
    12,377.92/17,068.32 = 9,360/x
  3. Step 3: Cross multiply
    12,377.92x = 17,068.32 × 9,360
  4. Step 4: Simplify right side
    12,377.92x = 159,759,475.20
  5. Step 5: Solve for x
    x = 159,759,475.20/12,377.92
  6. Step 6: Final answer
    x = 12,906.81

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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.