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Finding the Fourth Proportional to 8,736.35, 12,053.53 and 7,894.35

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Solution

The fourth proportional to 8,736.35, 12,053.53 and 7,894.35 is: 10,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.35 : 12,053.53 = 7,894.35 : x
  2. Step 2: Convert to fraction form
    8,736.35/12,053.53 = 7,894.35/x
  3. Step 3: Cross multiply
    8,736.35x = 12,053.53 × 7,894.35
  4. Step 4: Simplify right side
    8,736.35x = 95,154,784.56
  5. Step 5: Solve for x
    x = 95,154,784.56/8,736.35
  6. Step 6: Final answer
    x = 10,891.82

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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.