Home / 10,117.66-15,177.71-3,455.28

Finding the Fourth Proportional to 10,117.66, 15,177.71 and 3,455.28

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Solution

The fourth proportional to 10,117.66, 15,177.71 and 3,455.28 is: 5,183.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.66 : 15,177.71 = 3,455.28 : x
  2. Step 2: Convert to fraction form
    10,117.66/15,177.71 = 3,455.28/x
  3. Step 3: Cross multiply
    10,117.66x = 15,177.71 × 3,455.28
  4. Step 4: Simplify right side
    10,117.66x = 52,443,237.81
  5. Step 5: Solve for x
    x = 52,443,237.81/10,117.66
  6. Step 6: Final answer
    x = 5,183.34

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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.