Home / 15,146.55-20,900.36-8,773.06

Finding the Fourth Proportional to 15,146.55, 20,900.36 and 8,773.06

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Solution

The fourth proportional to 15,146.55, 20,900.36 and 8,773.06 is: 12,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.55 : 20,900.36 = 8,773.06 : x
  2. Step 2: Convert to fraction form
    15,146.55/20,900.36 = 8,773.06/x
  3. Step 3: Cross multiply
    15,146.55x = 20,900.36 × 8,773.06
  4. Step 4: Simplify right side
    15,146.55x = 183,360,112.30
  5. Step 5: Solve for x
    x = 183,360,112.30/15,146.55
  6. Step 6: Final answer
    x = 12,105.73

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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.