Home / 12,669.66-19,002.87-5,272.74

Finding the Fourth Proportional to 12,669.66, 19,002.87 and 5,272.74

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Solution

The fourth proportional to 12,669.66, 19,002.87 and 5,272.74 is: 7,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.66 : 19,002.87 = 5,272.74 : x
  2. Step 2: Convert to fraction form
    12,669.66/19,002.87 = 5,272.74/x
  3. Step 3: Cross multiply
    12,669.66x = 19,002.87 × 5,272.74
  4. Step 4: Simplify right side
    12,669.66x = 100,197,192.76
  5. Step 5: Solve for x
    x = 100,197,192.76/12,669.66
  6. Step 6: Final answer
    x = 7,908.44

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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.