Home / 18,987.57-26,167.73-14,788.53

Finding the Fourth Proportional to 18,987.57, 26,167.73 and 14,788.53

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Solution

The fourth proportional to 18,987.57, 26,167.73 and 14,788.53 is: 20,380.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.57 : 26,167.73 = 14,788.53 : x
  2. Step 2: Convert to fraction form
    18,987.57/26,167.73 = 14,788.53/x
  3. Step 3: Cross multiply
    18,987.57x = 26,167.73 × 14,788.53
  4. Step 4: Simplify right side
    18,987.57x = 386,982,186.19
  5. Step 5: Solve for x
    x = 386,982,186.19/18,987.57
  6. Step 6: Final answer
    x = 20,380.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.