Home / 13,672.15-18,744.50-13,423.03

Finding the Fourth Proportional to 13,672.15, 18,744.50 and 13,423.03

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Solution

The fourth proportional to 13,672.15, 18,744.50 and 13,423.03 is: 18,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.15 : 18,744.50 = 13,423.03 : x
  2. Step 2: Convert to fraction form
    13,672.15/18,744.50 = 13,423.03/x
  3. Step 3: Cross multiply
    13,672.15x = 18,744.50 × 13,423.03
  4. Step 4: Simplify right side
    13,672.15x = 251,607,972.53
  5. Step 5: Solve for x
    x = 251,607,972.53/13,672.15
  6. Step 6: Final answer
    x = 18,402.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.