Home / 19,163.42-28,746.58-5,123.15

Finding the Fourth Proportional to 19,163.42, 28,746.58 and 5,123.15

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Solution

The fourth proportional to 19,163.42, 28,746.58 and 5,123.15 is: 7,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.42 : 28,746.58 = 5,123.15 : x
  2. Step 2: Convert to fraction form
    19,163.42/28,746.58 = 5,123.15/x
  3. Step 3: Cross multiply
    19,163.42x = 28,746.58 × 5,123.15
  4. Step 4: Simplify right side
    19,163.42x = 147,273,002.19
  5. Step 5: Solve for x
    x = 147,273,002.19/19,163.42
  6. Step 6: Final answer
    x = 7,685.11

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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.