Home / 8,138.68-12,213.02-3,756.46

Finding the Fourth Proportional to 8,138.68, 12,213.02 and 3,756.46

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Solution

The fourth proportional to 8,138.68, 12,213.02 and 3,756.46 is: 5,637.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.68 : 12,213.02 = 3,756.46 : x
  2. Step 2: Convert to fraction form
    8,138.68/12,213.02 = 3,756.46/x
  3. Step 3: Cross multiply
    8,138.68x = 12,213.02 × 3,756.46
  4. Step 4: Simplify right side
    8,138.68x = 45,877,721.11
  5. Step 5: Solve for x
    x = 45,877,721.11/8,138.68
  6. Step 6: Final answer
    x = 5,637.00

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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.