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Finding the Fourth Proportional to 8,365.56, 12,549.63 and 2,818.47

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Solution

The fourth proportional to 8,365.56, 12,549.63 and 2,818.47 is: 4,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.56 : 12,549.63 = 2,818.47 : x
  2. Step 2: Convert to fraction form
    8,365.56/12,549.63 = 2,818.47/x
  3. Step 3: Cross multiply
    8,365.56x = 12,549.63 × 2,818.47
  4. Step 4: Simplify right side
    8,365.56x = 35,370,755.67
  5. Step 5: Solve for x
    x = 35,370,755.67/8,365.56
  6. Step 6: Final answer
    x = 4,228.14

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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.