Home / 7,387.20-11,071.08-3,693.60

Finding the Fourth Proportional to 7,387.20, 11,071.08 and 3,693.60

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Solution

The fourth proportional to 7,387.20, 11,071.08 and 3,693.60 is: 5,535.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.20 : 11,071.08 = 3,693.60 : x
  2. Step 2: Convert to fraction form
    7,387.20/11,071.08 = 3,693.60/x
  3. Step 3: Cross multiply
    7,387.20x = 11,071.08 × 3,693.60
  4. Step 4: Simplify right side
    7,387.20x = 40,892,141.09
  5. Step 5: Solve for x
    x = 40,892,141.09/7,387.20
  6. Step 6: Final answer
    x = 5,535.54

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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.