Home / 10,138.83-15,215.54-3,570.54

Finding the Fourth Proportional to 10,138.83, 15,215.54 and 3,570.54

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Solution

The fourth proportional to 10,138.83, 15,215.54 and 3,570.54 is: 5,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.83 : 15,215.54 = 3,570.54 : x
  2. Step 2: Convert to fraction form
    10,138.83/15,215.54 = 3,570.54/x
  3. Step 3: Cross multiply
    10,138.83x = 15,215.54 × 3,570.54
  4. Step 4: Simplify right side
    10,138.83x = 54,327,694.19
  5. Step 5: Solve for x
    x = 54,327,694.19/10,138.83
  6. Step 6: Final answer
    x = 5,358.38

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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.