Home / 18,985.47-26,198.01-11,029.38

Finding the Fourth Proportional to 18,985.47, 26,198.01 and 11,029.38

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Solution

The fourth proportional to 18,985.47, 26,198.01 and 11,029.38 is: 15,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.47 : 26,198.01 = 11,029.38 : x
  2. Step 2: Convert to fraction form
    18,985.47/26,198.01 = 11,029.38/x
  3. Step 3: Cross multiply
    18,985.47x = 26,198.01 × 11,029.38
  4. Step 4: Simplify right side
    18,985.47x = 288,947,807.53
  5. Step 5: Solve for x
    x = 288,947,807.53/18,985.47
  6. Step 6: Final answer
    x = 15,219.42

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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.