Home / 18,988.28-26,199.82-11,026.38

Finding the Fourth Proportional to 18,988.28, 26,199.82 and 11,026.38

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Solution

The fourth proportional to 18,988.28, 26,199.82 and 11,026.38 is: 15,214.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.28 : 26,199.82 = 11,026.38 : x
  2. Step 2: Convert to fraction form
    18,988.28/26,199.82 = 11,026.38/x
  3. Step 3: Cross multiply
    18,988.28x = 26,199.82 × 11,026.38
  4. Step 4: Simplify right side
    18,988.28x = 288,889,171.25
  5. Step 5: Solve for x
    x = 288,889,171.25/18,988.28
  6. Step 6: Final answer
    x = 15,214.08

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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.