Home / 26,191.40-39,288.40-7,474.20

Finding the Fourth Proportional to 26,191.40, 39,288.40 and 7,474.20

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Solution

The fourth proportional to 26,191.40, 39,288.40 and 7,474.20 is: 11,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,191.40 : 39,288.40 = 7,474.20 : x
  2. Step 2: Convert to fraction form
    26,191.40/39,288.40 = 7,474.20/x
  3. Step 3: Cross multiply
    26,191.40x = 39,288.40 × 7,474.20
  4. Step 4: Simplify right side
    26,191.40x = 293,649,162.84
  5. Step 5: Solve for x
    x = 293,649,162.84/26,191.40
  6. Step 6: Final answer
    x = 11,211.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.