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Finding the Fourth Proportional to 8,894.55, 12,275.43 and 5,117.88

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Solution

The fourth proportional to 8,894.55, 12,275.43 and 5,117.88 is: 7,063.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.55 : 12,275.43 = 5,117.88 : x
  2. Step 2: Convert to fraction form
    8,894.55/12,275.43 = 5,117.88/x
  3. Step 3: Cross multiply
    8,894.55x = 12,275.43 × 5,117.88
  4. Step 4: Simplify right side
    8,894.55x = 62,824,177.69
  5. Step 5: Solve for x
    x = 62,824,177.69/8,894.55
  6. Step 6: Final answer
    x = 7,063.22

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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.