Home / 18,727.37-28,095.10-5,580.80

Finding the Fourth Proportional to 18,727.37, 28,095.10 and 5,580.80

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Solution

The fourth proportional to 18,727.37, 28,095.10 and 5,580.80 is: 8,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.37 : 28,095.10 = 5,580.80 : x
  2. Step 2: Convert to fraction form
    18,727.37/28,095.10 = 5,580.80/x
  3. Step 3: Cross multiply
    18,727.37x = 28,095.10 × 5,580.80
  4. Step 4: Simplify right side
    18,727.37x = 156,792,979.65
  5. Step 5: Solve for x
    x = 156,792,979.65/18,727.37
  6. Step 6: Final answer
    x = 8,372.40

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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.