Home / 7,515.44-10,370.96-4,112.40

Finding the Fourth Proportional to 7,515.44, 10,370.96 and 4,112.40

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Solution

The fourth proportional to 7,515.44, 10,370.96 and 4,112.40 is: 5,674.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.44 : 10,370.96 = 4,112.40 : x
  2. Step 2: Convert to fraction form
    7,515.44/10,370.96 = 4,112.40/x
  3. Step 3: Cross multiply
    7,515.44x = 10,370.96 × 4,112.40
  4. Step 4: Simplify right side
    7,515.44x = 42,649,535.90
  5. Step 5: Solve for x
    x = 42,649,535.90/7,515.44
  6. Step 6: Final answer
    x = 5,674.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.