Home / 19,177.05-28,760.31-12,146.52

Finding the Fourth Proportional to 19,177.05, 28,760.31 and 12,146.52

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Solution

The fourth proportional to 19,177.05, 28,760.31 and 12,146.52 is: 18,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,177.05 : 28,760.31 = 12,146.52 : x
  2. Step 2: Convert to fraction form
    19,177.05/28,760.31 = 12,146.52/x
  3. Step 3: Cross multiply
    19,177.05x = 28,760.31 × 12,146.52
  4. Step 4: Simplify right side
    19,177.05x = 349,337,680.62
  5. Step 5: Solve for x
    x = 349,337,680.62/19,177.05
  6. Step 6: Final answer
    x = 18,216.45

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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.