Home / 12,515.57-18,773.98-3,749.65

Finding the Fourth Proportional to 12,515.57, 18,773.98 and 3,749.65

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Solution

The fourth proportional to 12,515.57, 18,773.98 and 3,749.65 is: 5,624.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.57 : 18,773.98 = 3,749.65 : x
  2. Step 2: Convert to fraction form
    12,515.57/18,773.98 = 3,749.65/x
  3. Step 3: Cross multiply
    12,515.57x = 18,773.98 × 3,749.65
  4. Step 4: Simplify right side
    12,515.57x = 70,395,854.11
  5. Step 5: Solve for x
    x = 70,395,854.11/12,515.57
  6. Step 6: Final answer
    x = 5,624.66

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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.