Home / 13,559.87-20,332.51-4,195.87

Finding the Fourth Proportional to 13,559.87, 20,332.51 and 4,195.87

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Solution

The fourth proportional to 13,559.87, 20,332.51 and 4,195.87 is: 6,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.87 : 20,332.51 = 4,195.87 : x
  2. Step 2: Convert to fraction form
    13,559.87/20,332.51 = 4,195.87/x
  3. Step 3: Cross multiply
    13,559.87x = 20,332.51 × 4,195.87
  4. Step 4: Simplify right side
    13,559.87x = 85,312,568.73
  5. Step 5: Solve for x
    x = 85,312,568.73/13,559.87
  6. Step 6: Final answer
    x = 6,291.55

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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.