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Finding the Fourth Proportional to 8,357.76, 12,536.52 and 2,809.92

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Solution

The fourth proportional to 8,357.76, 12,536.52 and 2,809.92 is: 4,214.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.76 : 12,536.52 = 2,809.92 : x
  2. Step 2: Convert to fraction form
    8,357.76/12,536.52 = 2,809.92/x
  3. Step 3: Cross multiply
    8,357.76x = 12,536.52 × 2,809.92
  4. Step 4: Simplify right side
    8,357.76x = 35,226,618.28
  5. Step 5: Solve for x
    x = 35,226,618.28/8,357.76
  6. Step 6: Final answer
    x = 4,214.84

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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.