Home / 18,681.38-28,026.51-6,369.38

Finding the Fourth Proportional to 18,681.38, 28,026.51 and 6,369.38

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Solution

The fourth proportional to 18,681.38, 28,026.51 and 6,369.38 is: 9,555.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.38 : 28,026.51 = 6,369.38 : x
  2. Step 2: Convert to fraction form
    18,681.38/28,026.51 = 6,369.38/x
  3. Step 3: Cross multiply
    18,681.38x = 28,026.51 × 6,369.38
  4. Step 4: Simplify right side
    18,681.38x = 178,511,352.13
  5. Step 5: Solve for x
    x = 178,511,352.13/18,681.38
  6. Step 6: Final answer
    x = 9,555.58

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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.