Home / 16,911.72-25,366.02-5,223.78

Finding the Fourth Proportional to 16,911.72, 25,366.02 and 5,223.78

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Solution

The fourth proportional to 16,911.72, 25,366.02 and 5,223.78 is: 7,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.72 : 25,366.02 = 5,223.78 : x
  2. Step 2: Convert to fraction form
    16,911.72/25,366.02 = 5,223.78/x
  3. Step 3: Cross multiply
    16,911.72x = 25,366.02 × 5,223.78
  4. Step 4: Simplify right side
    16,911.72x = 132,506,507.96
  5. Step 5: Solve for x
    x = 132,506,507.96/16,911.72
  6. Step 6: Final answer
    x = 7,835.19

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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.