Home / 7,230.12-9,979.53-5,236.89

Finding the Fourth Proportional to 7,230.12, 9,979.53 and 5,236.89

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Solution

The fourth proportional to 7,230.12, 9,979.53 and 5,236.89 is: 7,228.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.12 : 9,979.53 = 5,236.89 : x
  2. Step 2: Convert to fraction form
    7,230.12/9,979.53 = 5,236.89/x
  3. Step 3: Cross multiply
    7,230.12x = 9,979.53 × 5,236.89
  4. Step 4: Simplify right side
    7,230.12x = 52,261,700.86
  5. Step 5: Solve for x
    x = 52,261,700.86/7,230.12
  6. Step 6: Final answer
    x = 7,228.33

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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.