Home / 10,148.42-15,224.09-3,129.03

Finding the Fourth Proportional to 10,148.42, 15,224.09 and 3,129.03

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Solution

The fourth proportional to 10,148.42, 15,224.09 and 3,129.03 is: 4,693.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,148.42 : 15,224.09 = 3,129.03 : x
  2. Step 2: Convert to fraction form
    10,148.42/15,224.09 = 3,129.03/x
  3. Step 3: Cross multiply
    10,148.42x = 15,224.09 × 3,129.03
  4. Step 4: Simplify right side
    10,148.42x = 47,636,618.69
  5. Step 5: Solve for x
    x = 47,636,618.69/10,148.42
  6. Step 6: Final answer
    x = 4,693.99

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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.