Home / 10,211.04-15,316.70-2,815.43

Finding the Fourth Proportional to 10,211.04, 15,316.70 and 2,815.43

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Solution

The fourth proportional to 10,211.04, 15,316.70 and 2,815.43 is: 4,223.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.04 : 15,316.70 = 2,815.43 : x
  2. Step 2: Convert to fraction form
    10,211.04/15,316.70 = 2,815.43/x
  3. Step 3: Cross multiply
    10,211.04x = 15,316.70 × 2,815.43
  4. Step 4: Simplify right side
    10,211.04x = 43,123,006.02
  5. Step 5: Solve for x
    x = 43,123,006.02/10,211.04
  6. Step 6: Final answer
    x = 4,223.17

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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.