Home / 13,091.81-19,630.28-8,936.85

Finding the Fourth Proportional to 13,091.81, 19,630.28 and 8,936.85

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Solution

The fourth proportional to 13,091.81, 19,630.28 and 8,936.85 is: 13,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.81 : 19,630.28 = 8,936.85 : x
  2. Step 2: Convert to fraction form
    13,091.81/19,630.28 = 8,936.85/x
  3. Step 3: Cross multiply
    13,091.81x = 19,630.28 × 8,936.85
  4. Step 4: Simplify right side
    13,091.81x = 175,432,867.82
  5. Step 5: Solve for x
    x = 175,432,867.82/13,091.81
  6. Step 6: Final answer
    x = 13,400.20

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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.