Home / 18,730.23-28,091.49-5,579.07

Finding the Fourth Proportional to 18,730.23, 28,091.49 and 5,579.07

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Solution

The fourth proportional to 18,730.23, 28,091.49 and 5,579.07 is: 8,367.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.23 : 28,091.49 = 5,579.07 : x
  2. Step 2: Convert to fraction form
    18,730.23/28,091.49 = 5,579.07/x
  3. Step 3: Cross multiply
    18,730.23x = 28,091.49 × 5,579.07
  4. Step 4: Simplify right side
    18,730.23x = 156,724,389.11
  5. Step 5: Solve for x
    x = 156,724,389.11/18,730.23
  6. Step 6: Final answer
    x = 8,367.46

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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.