Home / 18,750.74-25,849.32-12,774.75

Finding the Fourth Proportional to 18,750.74, 25,849.32 and 12,774.75

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Solution

The fourth proportional to 18,750.74, 25,849.32 and 12,774.75 is: 17,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.74 : 25,849.32 = 12,774.75 : x
  2. Step 2: Convert to fraction form
    18,750.74/25,849.32 = 12,774.75/x
  3. Step 3: Cross multiply
    18,750.74x = 25,849.32 × 12,774.75
  4. Step 4: Simplify right side
    18,750.74x = 330,218,600.67
  5. Step 5: Solve for x
    x = 330,218,600.67/18,750.74
  6. Step 6: Final answer
    x = 17,610.97

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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.