Home / 19,143.14-28,712.40-5,104.22

Finding the Fourth Proportional to 19,143.14, 28,712.40 and 5,104.22

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Solution

The fourth proportional to 19,143.14, 28,712.40 and 5,104.22 is: 7,655.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.14 : 28,712.40 = 5,104.22 : x
  2. Step 2: Convert to fraction form
    19,143.14/28,712.40 = 5,104.22/x
  3. Step 3: Cross multiply
    19,143.14x = 28,712.40 × 5,104.22
  4. Step 4: Simplify right side
    19,143.14x = 146,554,262.77
  5. Step 5: Solve for x
    x = 146,554,262.77/19,143.14
  6. Step 6: Final answer
    x = 7,655.71

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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.