Home / 10,147.51-15,219.91-3,572.88

Finding the Fourth Proportional to 10,147.51, 15,219.91 and 3,572.88

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Solution

The fourth proportional to 10,147.51, 15,219.91 and 3,572.88 is: 5,358.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.51 : 15,219.91 = 3,572.88 : x
  2. Step 2: Convert to fraction form
    10,147.51/15,219.91 = 3,572.88/x
  3. Step 3: Cross multiply
    10,147.51x = 15,219.91 × 3,572.88
  4. Step 4: Simplify right side
    10,147.51x = 54,378,912.04
  5. Step 5: Solve for x
    x = 54,378,912.04/10,147.51
  6. Step 6: Final answer
    x = 5,358.84

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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.