Home / 10,316.05-15,474.07-2,920.57

Finding the Fourth Proportional to 10,316.05, 15,474.07 and 2,920.57

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Solution

The fourth proportional to 10,316.05, 15,474.07 and 2,920.57 is: 4,380.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.05 : 15,474.07 = 2,920.57 : x
  2. Step 2: Convert to fraction form
    10,316.05/15,474.07 = 2,920.57/x
  3. Step 3: Cross multiply
    10,316.05x = 15,474.07 × 2,920.57
  4. Step 4: Simplify right side
    10,316.05x = 45,193,012.65
  5. Step 5: Solve for x
    x = 45,193,012.65/10,316.05
  6. Step 6: Final answer
    x = 4,380.85

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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.