Home / 13,221.47-19,834.84-4,458.89

Finding the Fourth Proportional to 13,221.47, 19,834.84 and 4,458.89

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Solution

The fourth proportional to 13,221.47, 19,834.84 and 4,458.89 is: 6,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,221.47 : 19,834.84 = 4,458.89 : x
  2. Step 2: Convert to fraction form
    13,221.47/19,834.84 = 4,458.89/x
  3. Step 3: Cross multiply
    13,221.47x = 19,834.84 × 4,458.89
  4. Step 4: Simplify right side
    13,221.47x = 88,441,369.73
  5. Step 5: Solve for x
    x = 88,441,369.73/13,221.47
  6. Step 6: Final answer
    x = 6,689.22

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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.