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Finding the Fourth Proportional to 8,536.76, 12,801.06 and 4,378.76

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Solution

The fourth proportional to 8,536.76, 12,801.06 and 4,378.76 is: 6,566.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536.76 : 12,801.06 = 4,378.76 : x
  2. Step 2: Convert to fraction form
    8,536.76/12,801.06 = 4,378.76/x
  3. Step 3: Cross multiply
    8,536.76x = 12,801.06 × 4,378.76
  4. Step 4: Simplify right side
    8,536.76x = 56,052,769.49
  5. Step 5: Solve for x
    x = 56,052,769.49/8,536.76
  6. Step 6: Final answer
    x = 6,566.05

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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.