Home / 12,808.11-19,202.82-8,637.75

Finding the Fourth Proportional to 12,808.11, 19,202.82 and 8,637.75

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Solution

The fourth proportional to 12,808.11, 19,202.82 and 8,637.75 is: 12,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.11 : 19,202.82 = 8,637.75 : x
  2. Step 2: Convert to fraction form
    12,808.11/19,202.82 = 8,637.75/x
  3. Step 3: Cross multiply
    12,808.11x = 19,202.82 × 8,637.75
  4. Step 4: Simplify right side
    12,808.11x = 165,869,158.46
  5. Step 5: Solve for x
    x = 165,869,158.46/12,808.11
  6. Step 6: Final answer
    x = 12,950.32

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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.