Home / 10,290.24-15,426.45-3,721.14

Finding the Fourth Proportional to 10,290.24, 15,426.45 and 3,721.14

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Solution

The fourth proportional to 10,290.24, 15,426.45 and 3,721.14 is: 5,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.24 : 15,426.45 = 3,721.14 : x
  2. Step 2: Convert to fraction form
    10,290.24/15,426.45 = 3,721.14/x
  3. Step 3: Cross multiply
    10,290.24x = 15,426.45 × 3,721.14
  4. Step 4: Simplify right side
    10,290.24x = 57,403,980.15
  5. Step 5: Solve for x
    x = 57,403,980.15/10,290.24
  6. Step 6: Final answer
    x = 5,578.49

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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.