Home / 7,397.20-11,074.20-6,619.60

Finding the Fourth Proportional to 7,397.20, 11,074.20 and 6,619.60

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Solution

The fourth proportional to 7,397.20, 11,074.20 and 6,619.60 is: 9,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,397.20 : 11,074.20 = 6,619.60 : x
  2. Step 2: Convert to fraction form
    7,397.20/11,074.20 = 6,619.60/x
  3. Step 3: Cross multiply
    7,397.20x = 11,074.20 × 6,619.60
  4. Step 4: Simplify right side
    7,397.20x = 73,306,774.32
  5. Step 5: Solve for x
    x = 73,306,774.32/7,397.20
  6. Step 6: Final answer
    x = 9,910.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.