Home / 15,841.05-21,860.87-8,767.59

Finding the Fourth Proportional to 15,841.05, 21,860.87 and 8,767.59

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Solution

The fourth proportional to 15,841.05, 21,860.87 and 8,767.59 is: 12,099.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,841.05 : 21,860.87 = 8,767.59 : x
  2. Step 2: Convert to fraction form
    15,841.05/21,860.87 = 8,767.59/x
  3. Step 3: Cross multiply
    15,841.05x = 21,860.87 × 8,767.59
  4. Step 4: Simplify right side
    15,841.05x = 191,667,101.37
  5. Step 5: Solve for x
    x = 191,667,101.37/15,841.05
  6. Step 6: Final answer
    x = 12,099.39

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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.