Home / 17,414.32-26,122.72-8,640.40

Finding the Fourth Proportional to 17,414.32, 26,122.72 and 8,640.40

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Solution

The fourth proportional to 17,414.32, 26,122.72 and 8,640.40 is: 12,961.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,414.32 : 26,122.72 = 8,640.40 : x
  2. Step 2: Convert to fraction form
    17,414.32/26,122.72 = 8,640.40/x
  3. Step 3: Cross multiply
    17,414.32x = 26,122.72 × 8,640.40
  4. Step 4: Simplify right side
    17,414.32x = 225,710,749.89
  5. Step 5: Solve for x
    x = 225,710,749.89/17,414.32
  6. Step 6: Final answer
    x = 12,961.22

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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.