Home / 10,274.45-15,412.14-2,879.42

Finding the Fourth Proportional to 10,274.45, 15,412.14 and 2,879.42

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Solution

The fourth proportional to 10,274.45, 15,412.14 and 2,879.42 is: 4,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,274.45 : 15,412.14 = 2,879.42 : x
  2. Step 2: Convert to fraction form
    10,274.45/15,412.14 = 2,879.42/x
  3. Step 3: Cross multiply
    10,274.45x = 15,412.14 × 2,879.42
  4. Step 4: Simplify right side
    10,274.45x = 44,377,947.10
  5. Step 5: Solve for x
    x = 44,377,947.10/10,274.45
  6. Step 6: Final answer
    x = 4,319.25

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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.