Home / 15,171.41-20,936.67-8,799.32

Finding the Fourth Proportional to 15,171.41, 20,936.67 and 8,799.32

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Solution

The fourth proportional to 15,171.41, 20,936.67 and 8,799.32 is: 12,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.41 : 20,936.67 = 8,799.32 : x
  2. Step 2: Convert to fraction form
    15,171.41/20,936.67 = 8,799.32/x
  3. Step 3: Cross multiply
    15,171.41x = 20,936.67 × 8,799.32
  4. Step 4: Simplify right side
    15,171.41x = 184,228,459.06
  5. Step 5: Solve for x
    x = 184,228,459.06/15,171.41
  6. Step 6: Final answer
    x = 12,143.13

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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.