Home / 12,715.42-19,084.11-8,822.56

Finding the Fourth Proportional to 12,715.42, 19,084.11 and 8,822.56

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Solution

The fourth proportional to 12,715.42, 19,084.11 and 8,822.56 is: 13,241.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.42 : 19,084.11 = 8,822.56 : x
  2. Step 2: Convert to fraction form
    12,715.42/19,084.11 = 8,822.56/x
  3. Step 3: Cross multiply
    12,715.42x = 19,084.11 × 8,822.56
  4. Step 4: Simplify right side
    12,715.42x = 168,370,705.52
  5. Step 5: Solve for x
    x = 168,370,705.52/12,715.42
  6. Step 6: Final answer
    x = 13,241.46

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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.