Home / 10,522.12-15,777.68-3,125.56

Finding the Fourth Proportional to 10,522.12, 15,777.68 and 3,125.56

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Solution

The fourth proportional to 10,522.12, 15,777.68 and 3,125.56 is: 4,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.12 : 15,777.68 = 3,125.56 : x
  2. Step 2: Convert to fraction form
    10,522.12/15,777.68 = 3,125.56/x
  3. Step 3: Cross multiply
    10,522.12x = 15,777.68 × 3,125.56
  4. Step 4: Simplify right side
    10,522.12x = 49,314,085.50
  5. Step 5: Solve for x
    x = 49,314,085.50/10,522.12
  6. Step 6: Final answer
    x = 4,686.71

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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.