Home / 18,960.28-26,166.30-10,999.60

Finding the Fourth Proportional to 18,960.28, 26,166.30 and 10,999.60

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Solution

The fourth proportional to 18,960.28, 26,166.30 and 10,999.60 is: 15,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.28 : 26,166.30 = 10,999.60 : x
  2. Step 2: Convert to fraction form
    18,960.28/26,166.30 = 10,999.60/x
  3. Step 3: Cross multiply
    18,960.28x = 26,166.30 × 10,999.60
  4. Step 4: Simplify right side
    18,960.28x = 287,818,833.48
  5. Step 5: Solve for x
    x = 287,818,833.48/18,960.28
  6. Step 6: Final answer
    x = 15,180.09

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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.