Home / 19,909.04-29,877.12-8,222.18

Finding the Fourth Proportional to 19,909.04, 29,877.12 and 8,222.18

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Solution

The fourth proportional to 19,909.04, 29,877.12 and 8,222.18 is: 12,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.04 : 29,877.12 = 8,222.18 : x
  2. Step 2: Convert to fraction form
    19,909.04/29,877.12 = 8,222.18/x
  3. Step 3: Cross multiply
    19,909.04x = 29,877.12 × 8,222.18
  4. Step 4: Simplify right side
    19,909.04x = 245,654,909.14
  5. Step 5: Solve for x
    x = 245,654,909.14/19,909.04
  6. Step 6: Final answer
    x = 12,338.87

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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.