Home / 10,340.70-15,511.14-2,945.15

Finding the Fourth Proportional to 10,340.70, 15,511.14 and 2,945.15

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Solution

The fourth proportional to 10,340.70, 15,511.14 and 2,945.15 is: 4,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.70 : 15,511.14 = 2,945.15 : x
  2. Step 2: Convert to fraction form
    10,340.70/15,511.14 = 2,945.15/x
  3. Step 3: Cross multiply
    10,340.70x = 15,511.14 × 2,945.15
  4. Step 4: Simplify right side
    10,340.70x = 45,682,633.97
  5. Step 5: Solve for x
    x = 45,682,633.97/10,340.70
  6. Step 6: Final answer
    x = 4,417.75

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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.