Home / 13,545.66-20,358.58-13,177.51

Finding the Fourth Proportional to 13,545.66, 20,358.58 and 13,177.51

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Solution

The fourth proportional to 13,545.66, 20,358.58 and 13,177.51 is: 19,805.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.66 : 20,358.58 = 13,177.51 : x
  2. Step 2: Convert to fraction form
    13,545.66/20,358.58 = 13,177.51/x
  3. Step 3: Cross multiply
    13,545.66x = 20,358.58 × 13,177.51
  4. Step 4: Simplify right side
    13,545.66x = 268,275,391.54
  5. Step 5: Solve for x
    x = 268,275,391.54/13,545.66
  6. Step 6: Final answer
    x = 19,805.27

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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.