Home / 8,418.52-12,646.01-5,133.57

Finding the Fourth Proportional to 8,418.52, 12,646.01 and 5,133.57

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Solution

The fourth proportional to 8,418.52, 12,646.01 and 5,133.57 is: 7,711.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.52 : 12,646.01 = 5,133.57 : x
  2. Step 2: Convert to fraction form
    8,418.52/12,646.01 = 5,133.57/x
  3. Step 3: Cross multiply
    8,418.52x = 12,646.01 × 5,133.57
  4. Step 4: Simplify right side
    8,418.52x = 64,919,177.56
  5. Step 5: Solve for x
    x = 64,919,177.56/8,418.52
  6. Step 6: Final answer
    x = 7,711.47

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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.