Home / 18,987.60-26,199.24-11,027.04

Finding the Fourth Proportional to 18,987.60, 26,199.24 and 11,027.04

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Solution

The fourth proportional to 18,987.60, 26,199.24 and 11,027.04 is: 15,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.60 : 26,199.24 = 11,027.04 : x
  2. Step 2: Convert to fraction form
    18,987.60/26,199.24 = 11,027.04/x
  3. Step 3: Cross multiply
    18,987.60x = 26,199.24 × 11,027.04
  4. Step 4: Simplify right side
    18,987.60x = 288,900,067.45
  5. Step 5: Solve for x
    x = 288,900,067.45/18,987.60
  6. Step 6: Final answer
    x = 15,215.20

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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.