Home / 12,689.47-19,034.33-5,669.84

Finding the Fourth Proportional to 12,689.47, 19,034.33 and 5,669.84

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Solution

The fourth proportional to 12,689.47, 19,034.33 and 5,669.84 is: 8,504.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689.47 : 19,034.33 = 5,669.84 : x
  2. Step 2: Convert to fraction form
    12,689.47/19,034.33 = 5,669.84/x
  3. Step 3: Cross multiply
    12,689.47x = 19,034.33 × 5,669.84
  4. Step 4: Simplify right side
    12,689.47x = 107,921,605.61
  5. Step 5: Solve for x
    x = 107,921,605.61/12,689.47
  6. Step 6: Final answer
    x = 8,504.82

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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.