Home / 10,208.43-15,312.60-2,812.95

Finding the Fourth Proportional to 10,208.43, 15,312.60 and 2,812.95

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Solution

The fourth proportional to 10,208.43, 15,312.60 and 2,812.95 is: 4,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.43 : 15,312.60 = 2,812.95 : x
  2. Step 2: Convert to fraction form
    10,208.43/15,312.60 = 2,812.95/x
  3. Step 3: Cross multiply
    10,208.43x = 15,312.60 × 2,812.95
  4. Step 4: Simplify right side
    10,208.43x = 43,073,578.17
  5. Step 5: Solve for x
    x = 43,073,578.17/10,208.43
  6. Step 6: Final answer
    x = 4,219.41

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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.