Home / 7,524.80-10,373.40-5,279.72

Finding the Fourth Proportional to 7,524.80, 10,373.40 and 5,279.72

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Solution

The fourth proportional to 7,524.80, 10,373.40 and 5,279.72 is: 7,278.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,524.80 : 10,373.40 = 5,279.72 : x
  2. Step 2: Convert to fraction form
    7,524.80/10,373.40 = 5,279.72/x
  3. Step 3: Cross multiply
    7,524.80x = 10,373.40 × 5,279.72
  4. Step 4: Simplify right side
    7,524.80x = 54,768,647.45
  5. Step 5: Solve for x
    x = 54,768,647.45/7,524.80
  6. Step 6: Final answer
    x = 7,278.42

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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.