Home / 12,020.66-18,006.50-9,807.38

Finding the Fourth Proportional to 12,020.66, 18,006.50 and 9,807.38

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Solution

The fourth proportional to 12,020.66, 18,006.50 and 9,807.38 is: 14,691.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.66 : 18,006.50 = 9,807.38 : x
  2. Step 2: Convert to fraction form
    12,020.66/18,006.50 = 9,807.38/x
  3. Step 3: Cross multiply
    12,020.66x = 18,006.50 × 9,807.38
  4. Step 4: Simplify right side
    12,020.66x = 176,596,587.97
  5. Step 5: Solve for x
    x = 176,596,587.97/12,020.66
  6. Step 6: Final answer
    x = 14,691.09

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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.