Home / 17,415.12-26,126.61-6,321.78

Finding the Fourth Proportional to 17,415.12, 26,126.61 and 6,321.78

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Solution

The fourth proportional to 17,415.12, 26,126.61 and 6,321.78 is: 9,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,415.12 : 26,126.61 = 6,321.78 : x
  2. Step 2: Convert to fraction form
    17,415.12/26,126.61 = 6,321.78/x
  3. Step 3: Cross multiply
    17,415.12x = 26,126.61 × 6,321.78
  4. Step 4: Simplify right side
    17,415.12x = 165,166,680.57
  5. Step 5: Solve for x
    x = 165,166,680.57/17,415.12
  6. Step 6: Final answer
    x = 9,484.10

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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.