Home / 13,672.20-18,744.59-13,423.08

Finding the Fourth Proportional to 13,672.20, 18,744.59 and 13,423.08

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Solution

The fourth proportional to 13,672.20, 18,744.59 and 13,423.08 is: 18,403.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.20 : 18,744.59 = 13,423.08 : x
  2. Step 2: Convert to fraction form
    13,672.20/18,744.59 = 13,423.08/x
  3. Step 3: Cross multiply
    13,672.20x = 18,744.59 × 13,423.08
  4. Step 4: Simplify right side
    13,672.20x = 251,610,064.02
  5. Step 5: Solve for x
    x = 251,610,064.02/13,672.20
  6. Step 6: Final answer
    x = 18,403.04

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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.