Home / 7,221.20-9,963.14-4,237.16

Finding the Fourth Proportional to 7,221.20, 9,963.14 and 4,237.16

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Solution

The fourth proportional to 7,221.20, 9,963.14 and 4,237.16 is: 5,846.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.20 : 9,963.14 = 4,237.16 : x
  2. Step 2: Convert to fraction form
    7,221.20/9,963.14 = 4,237.16/x
  3. Step 3: Cross multiply
    7,221.20x = 9,963.14 × 4,237.16
  4. Step 4: Simplify right side
    7,221.20x = 42,215,347.28
  5. Step 5: Solve for x
    x = 42,215,347.28/7,221.20
  6. Step 6: Final answer
    x = 5,846.03

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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.