Home / 10,525.23-15,787.49-3,129.73

Finding the Fourth Proportional to 10,525.23, 15,787.49 and 3,129.73

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Solution

The fourth proportional to 10,525.23, 15,787.49 and 3,129.73 is: 4,694.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,525.23 : 15,787.49 = 3,129.73 : x
  2. Step 2: Convert to fraction form
    10,525.23/15,787.49 = 3,129.73/x
  3. Step 3: Cross multiply
    10,525.23x = 15,787.49 × 3,129.73
  4. Step 4: Simplify right side
    10,525.23x = 49,410,581.08
  5. Step 5: Solve for x
    x = 49,410,581.08/10,525.23
  6. Step 6: Final answer
    x = 4,694.49

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Double scale
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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.