Home / 15,158.88-20,922.48-10,188

Finding the Fourth Proportional to 15,158.88, 20,922.48 and 10,188

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Solution

The fourth proportional to 15,158.88, 20,922.48 and 10,188 is: 14,061.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,158.88 : 20,922.48 = 10,188 : x
  2. Step 2: Convert to fraction form
    15,158.88/20,922.48 = 10,188/x
  3. Step 3: Cross multiply
    15,158.88x = 20,922.48 × 10,188
  4. Step 4: Simplify right side
    15,158.88x = 213,158,226.24
  5. Step 5: Solve for x
    x = 213,158,226.24/15,158.88
  6. Step 6: Final answer
    x = 14,061.61

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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.