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Finding the Fourth Proportional to 8,853.66, 13,270.86 and 4,170.72

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Solution

The fourth proportional to 8,853.66, 13,270.86 and 4,170.72 is: 6,251.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.66 : 13,270.86 = 4,170.72 : x
  2. Step 2: Convert to fraction form
    8,853.66/13,270.86 = 4,170.72/x
  3. Step 3: Cross multiply
    8,853.66x = 13,270.86 × 4,170.72
  4. Step 4: Simplify right side
    8,853.66x = 55,349,041.22
  5. Step 5: Solve for x
    x = 55,349,041.22/8,853.66
  6. Step 6: Final answer
    x = 6,251.54

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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.