Home / 8,538.40-12,808.28-2,695.47

Finding the Fourth Proportional to 8,538.40, 12,808.28 and 2,695.47

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Solution

The fourth proportional to 8,538.40, 12,808.28 and 2,695.47 is: 4,043.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.40 : 12,808.28 = 2,695.47 : x
  2. Step 2: Convert to fraction form
    8,538.40/12,808.28 = 2,695.47/x
  3. Step 3: Cross multiply
    8,538.40x = 12,808.28 × 2,695.47
  4. Step 4: Simplify right side
    8,538.40x = 34,524,334.49
  5. Step 5: Solve for x
    x = 34,524,334.49/8,538.40
  6. Step 6: Final answer
    x = 4,043.42

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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.