Home / 7,218.24-9,960.98-4,235.55

Finding the Fourth Proportional to 7,218.24, 9,960.98 and 4,235.55

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Solution

The fourth proportional to 7,218.24, 9,960.98 and 4,235.55 is: 5,844.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.24 : 9,960.98 = 4,235.55 : x
  2. Step 2: Convert to fraction form
    7,218.24/9,960.98 = 4,235.55/x
  3. Step 3: Cross multiply
    7,218.24x = 9,960.98 × 4,235.55
  4. Step 4: Simplify right side
    7,218.24x = 42,190,207.66
  5. Step 5: Solve for x
    x = 42,190,207.66/7,218.24
  6. Step 6: Final answer
    x = 5,844.94

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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.