Home / 18,732.24-28,095.12-6,420.24

Finding the Fourth Proportional to 18,732.24, 28,095.12 and 6,420.24

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Solution

The fourth proportional to 18,732.24, 28,095.12 and 6,420.24 is: 9,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.24 : 28,095.12 = 6,420.24 : x
  2. Step 2: Convert to fraction form
    18,732.24/28,095.12 = 6,420.24/x
  3. Step 3: Cross multiply
    18,732.24x = 28,095.12 × 6,420.24
  4. Step 4: Simplify right side
    18,732.24x = 180,377,413.23
  5. Step 5: Solve for x
    x = 180,377,413.23/18,732.24
  6. Step 6: Final answer
    x = 9,629.25

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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.