Home / 19,551.42-26,987.54-12,189.96

Finding the Fourth Proportional to 19,551.42, 26,987.54 and 12,189.96

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Solution

The fourth proportional to 19,551.42, 26,987.54 and 12,189.96 is: 16,826.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.42 : 26,987.54 = 12,189.96 : x
  2. Step 2: Convert to fraction form
    19,551.42/26,987.54 = 12,189.96/x
  3. Step 3: Cross multiply
    19,551.42x = 26,987.54 × 12,189.96
  4. Step 4: Simplify right side
    19,551.42x = 328,976,972.15
  5. Step 5: Solve for x
    x = 328,976,972.15/19,551.42
  6. Step 6: Final answer
    x = 16,826.24

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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.