Home / 9,387.48-12,954.54-5,195.76

Finding the Fourth Proportional to 9,387.48, 12,954.54 and 5,195.76

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Solution

The fourth proportional to 9,387.48, 12,954.54 and 5,195.76 is: 7,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.48 : 12,954.54 = 5,195.76 : x
  2. Step 2: Convert to fraction form
    9,387.48/12,954.54 = 5,195.76/x
  3. Step 3: Cross multiply
    9,387.48x = 12,954.54 × 5,195.76
  4. Step 4: Simplify right side
    9,387.48x = 67,308,680.75
  5. Step 5: Solve for x
    x = 67,308,680.75/9,387.48
  6. Step 6: Final answer
    x = 7,170.05

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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.