Home / 11,245.08-15,522.30-9,145.56

Finding the Fourth Proportional to 11,245.08, 15,522.30 and 9,145.56

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Solution

The fourth proportional to 11,245.08, 15,522.30 and 9,145.56 is: 12,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.08 : 15,522.30 = 9,145.56 : x
  2. Step 2: Convert to fraction form
    11,245.08/15,522.30 = 9,145.56/x
  3. Step 3: Cross multiply
    11,245.08x = 15,522.30 × 9,145.56
  4. Step 4: Simplify right side
    11,245.08x = 141,960,125.99
  5. Step 5: Solve for x
    x = 141,960,125.99/11,245.08
  6. Step 6: Final answer
    x = 12,624.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.