Home / 10,148.40-15,219.74-3,908

Finding the Fourth Proportional to 10,148.40, 15,219.74 and 3,908

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Solution

The fourth proportional to 10,148.40, 15,219.74 and 3,908 is: 5,860.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,148.40 : 15,219.74 = 3,908 : x
  2. Step 2: Convert to fraction form
    10,148.40/15,219.74 = 3,908/x
  3. Step 3: Cross multiply
    10,148.40x = 15,219.74 × 3,908
  4. Step 4: Simplify right side
    10,148.40x = 59,478,743.92
  5. Step 5: Solve for x
    x = 59,478,743.92/10,148.40
  6. Step 6: Final answer
    x = 5,860.90

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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.