Home / 7,334.15-10,120.49-4,147.28

Finding the Fourth Proportional to 7,334.15, 10,120.49 and 4,147.28

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Solution

The fourth proportional to 7,334.15, 10,120.49 and 4,147.28 is: 5,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,334.15 : 10,120.49 = 4,147.28 : x
  2. Step 2: Convert to fraction form
    7,334.15/10,120.49 = 4,147.28/x
  3. Step 3: Cross multiply
    7,334.15x = 10,120.49 × 4,147.28
  4. Step 4: Simplify right side
    7,334.15x = 41,972,482.80
  5. Step 5: Solve for x
    x = 41,972,482.80/7,334.15
  6. Step 6: Final answer
    x = 5,722.89

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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.