Home / 15,895.41-21,933.77-8,820.87

Finding the Fourth Proportional to 15,895.41, 21,933.77 and 8,820.87

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Solution

The fourth proportional to 15,895.41, 21,933.77 and 8,820.87 is: 12,171.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.41 : 21,933.77 = 8,820.87 : x
  2. Step 2: Convert to fraction form
    15,895.41/21,933.77 = 8,820.87/x
  3. Step 3: Cross multiply
    15,895.41x = 21,933.77 × 8,820.87
  4. Step 4: Simplify right side
    15,895.41x = 193,474,889.68
  5. Step 5: Solve for x
    x = 193,474,889.68/15,895.41
  6. Step 6: Final answer
    x = 12,171.75

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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.