Home / 7,339.80-10,122.39-5,765.16

Finding the Fourth Proportional to 7,339.80, 10,122.39 and 5,765.16

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Solution

The fourth proportional to 7,339.80, 10,122.39 and 5,765.16 is: 7,950.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.80 : 10,122.39 = 5,765.16 : x
  2. Step 2: Convert to fraction form
    7,339.80/10,122.39 = 5,765.16/x
  3. Step 3: Cross multiply
    7,339.80x = 10,122.39 × 5,765.16
  4. Step 4: Simplify right side
    7,339.80x = 58,357,197.93
  5. Step 5: Solve for x
    x = 58,357,197.93/7,339.80
  6. Step 6: Final answer
    x = 7,950.79

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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.