Home / 19,143.54-28,717.53-5,103.76

Finding the Fourth Proportional to 19,143.54, 28,717.53 and 5,103.76

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Solution

The fourth proportional to 19,143.54, 28,717.53 and 5,103.76 is: 7,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.54 : 28,717.53 = 5,103.76 : x
  2. Step 2: Convert to fraction form
    19,143.54/28,717.53 = 5,103.76/x
  3. Step 3: Cross multiply
    19,143.54x = 28,717.53 × 5,103.76
  4. Step 4: Simplify right side
    19,143.54x = 146,567,380.91
  5. Step 5: Solve for x
    x = 146,567,380.91/19,143.54
  6. Step 6: Final answer
    x = 7,656.23

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1.5x scale

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.