Home / 8,291.88-12,429.18-5,695.56

Finding the Fourth Proportional to 8,291.88, 12,429.18 and 5,695.56

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Solution

The fourth proportional to 8,291.88, 12,429.18 and 5,695.56 is: 8,537.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.88 : 12,429.18 = 5,695.56 : x
  2. Step 2: Convert to fraction form
    8,291.88/12,429.18 = 5,695.56/x
  3. Step 3: Cross multiply
    8,291.88x = 12,429.18 × 5,695.56
  4. Step 4: Simplify right side
    8,291.88x = 70,791,140.44
  5. Step 5: Solve for x
    x = 70,791,140.44/8,291.88
  6. Step 6: Final answer
    x = 8,537.41

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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.