Home / 10,424.49-15,634.86-5,157.81

Finding the Fourth Proportional to 10,424.49, 15,634.86 and 5,157.81

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Solution

The fourth proportional to 10,424.49, 15,634.86 and 5,157.81 is: 7,735.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,424.49 : 15,634.86 = 5,157.81 : x
  2. Step 2: Convert to fraction form
    10,424.49/15,634.86 = 5,157.81/x
  3. Step 3: Cross multiply
    10,424.49x = 15,634.86 × 5,157.81
  4. Step 4: Simplify right side
    10,424.49x = 80,641,637.26
  5. Step 5: Solve for x
    x = 80,641,637.26/10,424.49
  6. Step 6: Final answer
    x = 7,735.79

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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.