Home / 7,966.36-11,948.55-2,123.38

Finding the Fourth Proportional to 7,966.36, 11,948.55 and 2,123.38

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Solution

The fourth proportional to 7,966.36, 11,948.55 and 2,123.38 is: 3,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.36 : 11,948.55 = 2,123.38 : x
  2. Step 2: Convert to fraction form
    7,966.36/11,948.55 = 2,123.38/x
  3. Step 3: Cross multiply
    7,966.36x = 11,948.55 × 2,123.38
  4. Step 4: Simplify right side
    7,966.36x = 25,371,312.10
  5. Step 5: Solve for x
    x = 25,371,312.10/7,966.36
  6. Step 6: Final answer
    x = 3,184.81

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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.