Home / 15,100.59-20,838.96-8,811.75

Finding the Fourth Proportional to 15,100.59, 20,838.96 and 8,811.75

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Solution

The fourth proportional to 15,100.59, 20,838.96 and 8,811.75 is: 12,160.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,100.59 : 20,838.96 = 8,811.75 : x
  2. Step 2: Convert to fraction form
    15,100.59/20,838.96 = 8,811.75/x
  3. Step 3: Cross multiply
    15,100.59x = 20,838.96 × 8,811.75
  4. Step 4: Simplify right side
    15,100.59x = 183,627,705.78
  5. Step 5: Solve for x
    x = 183,627,705.78/15,100.59
  6. Step 6: Final answer
    x = 12,160.30

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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.