Home / 7,426.78-11,140.32-2,162.18

Finding the Fourth Proportional to 7,426.78, 11,140.32 and 2,162.18

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Solution

The fourth proportional to 7,426.78, 11,140.32 and 2,162.18 is: 3,243.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.78 : 11,140.32 = 2,162.18 : x
  2. Step 2: Convert to fraction form
    7,426.78/11,140.32 = 2,162.18/x
  3. Step 3: Cross multiply
    7,426.78x = 11,140.32 × 2,162.18
  4. Step 4: Simplify right side
    7,426.78x = 24,087,377.10
  5. Step 5: Solve for x
    x = 24,087,377.10/7,426.78
  6. Step 6: Final answer
    x = 3,243.31

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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.