Home / 18,958.28-26,158.41-10,999.49

Finding the Fourth Proportional to 18,958.28, 26,158.41 and 10,999.49

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Solution

The fourth proportional to 18,958.28, 26,158.41 and 10,999.49 is: 15,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.28 : 26,158.41 = 10,999.49 : x
  2. Step 2: Convert to fraction form
    18,958.28/26,158.41 = 10,999.49/x
  3. Step 3: Cross multiply
    18,958.28x = 26,158.41 × 10,999.49
  4. Step 4: Simplify right side
    18,958.28x = 287,729,038.42
  5. Step 5: Solve for x
    x = 287,729,038.42/18,958.28
  6. Step 6: Final answer
    x = 15,176.96

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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.