Home / 13,521.26-20,184.23-12,914.69

Finding the Fourth Proportional to 13,521.26, 20,184.23 and 12,914.69

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Solution

The fourth proportional to 13,521.26, 20,184.23 and 12,914.69 is: 19,278.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.26 : 20,184.23 = 12,914.69 : x
  2. Step 2: Convert to fraction form
    13,521.26/20,184.23 = 12,914.69/x
  3. Step 3: Cross multiply
    13,521.26x = 20,184.23 × 12,914.69
  4. Step 4: Simplify right side
    13,521.26x = 260,673,004.70
  5. Step 5: Solve for x
    x = 260,673,004.70/13,521.26
  6. Step 6: Final answer
    x = 19,278.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.