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Finding the Fourth Proportional to 8,881.16, 12,255.53 and 5,523.88

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Solution

The fourth proportional to 8,881.16, 12,255.53 and 5,523.88 is: 7,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.16 : 12,255.53 = 5,523.88 : x
  2. Step 2: Convert to fraction form
    8,881.16/12,255.53 = 5,523.88/x
  3. Step 3: Cross multiply
    8,881.16x = 12,255.53 × 5,523.88
  4. Step 4: Simplify right side
    8,881.16x = 67,698,077.06
  5. Step 5: Solve for x
    x = 67,698,077.06/8,881.16
  6. Step 6: Final answer
    x = 7,622.66

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1.5x scale

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.