Home / 10,621.19-15,932.50-3,125.42

Finding the Fourth Proportional to 10,621.19, 15,932.50 and 3,125.42

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Solution

The fourth proportional to 10,621.19, 15,932.50 and 3,125.42 is: 4,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.19 : 15,932.50 = 3,125.42 : x
  2. Step 2: Convert to fraction form
    10,621.19/15,932.50 = 3,125.42/x
  3. Step 3: Cross multiply
    10,621.19x = 15,932.50 × 3,125.42
  4. Step 4: Simplify right side
    10,621.19x = 49,795,726.42
  5. Step 5: Solve for x
    x = 49,795,726.42/10,621.19
  6. Step 6: Final answer
    x = 4,688.34

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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.