Home / 14,211.40-21,316.87-4,857.87

Finding the Fourth Proportional to 14,211.40, 21,316.87 and 4,857.87

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Solution

The fourth proportional to 14,211.40, 21,316.87 and 4,857.87 is: 7,286.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.40 : 21,316.87 = 4,857.87 : x
  2. Step 2: Convert to fraction form
    14,211.40/21,316.87 = 4,857.87/x
  3. Step 3: Cross multiply
    14,211.40x = 21,316.87 × 4,857.87
  4. Step 4: Simplify right side
    14,211.40x = 103,554,669.28
  5. Step 5: Solve for x
    x = 103,554,669.28/14,211.40
  6. Step 6: Final answer
    x = 7,286.73

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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.