Home / 15,188.09-20,961.18-8,476.04

Finding the Fourth Proportional to 15,188.09, 20,961.18 and 8,476.04

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Solution

The fourth proportional to 15,188.09, 20,961.18 and 8,476.04 is: 11,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.09 : 20,961.18 = 8,476.04 : x
  2. Step 2: Convert to fraction form
    15,188.09/20,961.18 = 8,476.04/x
  3. Step 3: Cross multiply
    15,188.09x = 20,961.18 × 8,476.04
  4. Step 4: Simplify right side
    15,188.09x = 177,667,852.53
  5. Step 5: Solve for x
    x = 177,667,852.53/15,188.09
  6. Step 6: Final answer
    x = 11,697.84

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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.