Home / 18,099.49-27,141.71-6,999.78

Finding the Fourth Proportional to 18,099.49, 27,141.71 and 6,999.78

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Solution

The fourth proportional to 18,099.49, 27,141.71 and 6,999.78 is: 10,496.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.49 : 27,141.71 = 6,999.78 : x
  2. Step 2: Convert to fraction form
    18,099.49/27,141.71 = 6,999.78/x
  3. Step 3: Cross multiply
    18,099.49x = 27,141.71 × 6,999.78
  4. Step 4: Simplify right side
    18,099.49x = 189,985,862.04
  5. Step 5: Solve for x
    x = 189,985,862.04/18,099.49
  6. Step 6: Final answer
    x = 10,496.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.