Home / 19,401.40-26,777.43-11,443.15

Finding the Fourth Proportional to 19,401.40, 26,777.43 and 11,443.15

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Solution

The fourth proportional to 19,401.40, 26,777.43 and 11,443.15 is: 15,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.40 : 26,777.43 = 11,443.15 : x
  2. Step 2: Convert to fraction form
    19,401.40/26,777.43 = 11,443.15/x
  3. Step 3: Cross multiply
    19,401.40x = 26,777.43 × 11,443.15
  4. Step 4: Simplify right side
    19,401.40x = 306,418,148.10
  5. Step 5: Solve for x
    x = 306,418,148.10/19,401.40
  6. Step 6: Final answer
    x = 15,793.61

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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.