Home / 18,767.67-28,126.89-10,443.39

Finding the Fourth Proportional to 18,767.67, 28,126.89 and 10,443.39

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Solution

The fourth proportional to 18,767.67, 28,126.89 and 10,443.39 is: 15,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.67 : 28,126.89 = 10,443.39 : x
  2. Step 2: Convert to fraction form
    18,767.67/28,126.89 = 10,443.39/x
  3. Step 3: Cross multiply
    18,767.67x = 28,126.89 × 10,443.39
  4. Step 4: Simplify right side
    18,767.67x = 293,740,081.76
  5. Step 5: Solve for x
    x = 293,740,081.76/18,767.67
  6. Step 6: Final answer
    x = 15,651.39

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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.