Home / 10,525.37-15,788.73-3,129.21

Finding the Fourth Proportional to 10,525.37, 15,788.73 and 3,129.21

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Solution

The fourth proportional to 10,525.37, 15,788.73 and 3,129.21 is: 4,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,525.37 : 15,788.73 = 3,129.21 : x
  2. Step 2: Convert to fraction form
    10,525.37/15,788.73 = 3,129.21/x
  3. Step 3: Cross multiply
    10,525.37x = 15,788.73 × 3,129.21
  4. Step 4: Simplify right side
    10,525.37x = 49,406,251.80
  5. Step 5: Solve for x
    x = 49,406,251.80/10,525.37
  6. Step 6: Final answer
    x = 4,694.02

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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.