Home / 18,693.19-28,039.77-5,545.44

Finding the Fourth Proportional to 18,693.19, 28,039.77 and 5,545.44

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Solution

The fourth proportional to 18,693.19, 28,039.77 and 5,545.44 is: 8,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.19 : 28,039.77 = 5,545.44 : x
  2. Step 2: Convert to fraction form
    18,693.19/28,039.77 = 5,545.44/x
  3. Step 3: Cross multiply
    18,693.19x = 28,039.77 × 5,545.44
  4. Step 4: Simplify right side
    18,693.19x = 155,492,988.09
  5. Step 5: Solve for x
    x = 155,492,988.09/18,693.19
  6. Step 6: Final answer
    x = 8,318.16

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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.