Home / 9,072.20-13,602.18-3,147.56

Finding the Fourth Proportional to 9,072.20, 13,602.18 and 3,147.56

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Solution

The fourth proportional to 9,072.20, 13,602.18 and 3,147.56 is: 4,719.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072.20 : 13,602.18 = 3,147.56 : x
  2. Step 2: Convert to fraction form
    9,072.20/13,602.18 = 3,147.56/x
  3. Step 3: Cross multiply
    9,072.20x = 13,602.18 × 3,147.56
  4. Step 4: Simplify right side
    9,072.20x = 42,813,677.68
  5. Step 5: Solve for x
    x = 42,813,677.68/9,072.20
  6. Step 6: Final answer
    x = 4,719.22

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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.