Home / 15,096.72-20,853.08-11,489.77

Finding the Fourth Proportional to 15,096.72, 20,853.08 and 11,489.77

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Solution

The fourth proportional to 15,096.72, 20,853.08 and 11,489.77 is: 15,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,096.72 : 20,853.08 = 11,489.77 : x
  2. Step 2: Convert to fraction form
    15,096.72/20,853.08 = 11,489.77/x
  3. Step 3: Cross multiply
    15,096.72x = 20,853.08 × 11,489.77
  4. Step 4: Simplify right side
    15,096.72x = 239,597,035.87
  5. Step 5: Solve for x
    x = 239,597,035.87/15,096.72
  6. Step 6: Final answer
    x = 15,870.80

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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.