Home / 14,306.14-21,455.93-3,918.70

Finding the Fourth Proportional to 14,306.14, 21,455.93 and 3,918.70

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Solution

The fourth proportional to 14,306.14, 21,455.93 and 3,918.70 is: 5,877.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,306.14 : 21,455.93 = 3,918.70 : x
  2. Step 2: Convert to fraction form
    14,306.14/21,455.93 = 3,918.70/x
  3. Step 3: Cross multiply
    14,306.14x = 21,455.93 × 3,918.70
  4. Step 4: Simplify right side
    14,306.14x = 84,079,352.89
  5. Step 5: Solve for x
    x = 84,079,352.89/14,306.14
  6. Step 6: Final answer
    x = 5,877.15

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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.