Home / 7,220.20-9,934.18-6,759.40

Finding the Fourth Proportional to 7,220.20, 9,934.18 and 6,759.40

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Solution

The fourth proportional to 7,220.20, 9,934.18 and 6,759.40 is: 9,300.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.20 : 9,934.18 = 6,759.40 : x
  2. Step 2: Convert to fraction form
    7,220.20/9,934.18 = 6,759.40/x
  3. Step 3: Cross multiply
    7,220.20x = 9,934.18 × 6,759.40
  4. Step 4: Simplify right side
    7,220.20x = 67,149,096.29
  5. Step 5: Solve for x
    x = 67,149,096.29/7,220.20
  6. Step 6: Final answer
    x = 9,300.17

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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.