Home / 18,686.05-25,898.06-18,336.13

Finding the Fourth Proportional to 18,686.05, 25,898.06 and 18,336.13

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Solution

The fourth proportional to 18,686.05, 25,898.06 and 18,336.13 is: 25,413.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.05 : 25,898.06 = 18,336.13 : x
  2. Step 2: Convert to fraction form
    18,686.05/25,898.06 = 18,336.13/x
  3. Step 3: Cross multiply
    18,686.05x = 25,898.06 × 18,336.13
  4. Step 4: Simplify right side
    18,686.05x = 474,870,139.62
  5. Step 5: Solve for x
    x = 474,870,139.62/18,686.05
  6. Step 6: Final answer
    x = 25,413.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.