Home / 10,214.74-15,314.94-5,218.62

Finding the Fourth Proportional to 10,214.74, 15,314.94 and 5,218.62

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Solution

The fourth proportional to 10,214.74, 15,314.94 and 5,218.62 is: 7,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.74 : 15,314.94 = 5,218.62 : x
  2. Step 2: Convert to fraction form
    10,214.74/15,314.94 = 5,218.62/x
  3. Step 3: Cross multiply
    10,214.74x = 15,314.94 × 5,218.62
  4. Step 4: Simplify right side
    10,214.74x = 79,922,852.18
  5. Step 5: Solve for x
    x = 79,922,852.18/10,214.74
  6. Step 6: Final answer
    x = 7,824.27

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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.