Home / 7,245.18-9,998.49-4,728.90

Finding the Fourth Proportional to 7,245.18, 9,998.49 and 4,728.90

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Solution

The fourth proportional to 7,245.18, 9,998.49 and 4,728.90 is: 6,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.18 : 9,998.49 = 4,728.90 : x
  2. Step 2: Convert to fraction form
    7,245.18/9,998.49 = 4,728.90/x
  3. Step 3: Cross multiply
    7,245.18x = 9,998.49 × 4,728.90
  4. Step 4: Simplify right side
    7,245.18x = 47,281,859.36
  5. Step 5: Solve for x
    x = 47,281,859.36/7,245.18
  6. Step 6: Final answer
    x = 6,525.97

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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.