Home / 7,275.47-10,914.21-3,115.53

Finding the Fourth Proportional to 7,275.47, 10,914.21 and 3,115.53

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Solution

The fourth proportional to 7,275.47, 10,914.21 and 3,115.53 is: 4,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.47 : 10,914.21 = 3,115.53 : x
  2. Step 2: Convert to fraction form
    7,275.47/10,914.21 = 3,115.53/x
  3. Step 3: Cross multiply
    7,275.47x = 10,914.21 × 3,115.53
  4. Step 4: Simplify right side
    7,275.47x = 34,003,548.68
  5. Step 5: Solve for x
    x = 34,003,548.68/7,275.47
  6. Step 6: Final answer
    x = 4,673.73

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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.