Home / 18,948.23-28,406.15-7,269.83

Finding the Fourth Proportional to 18,948.23, 28,406.15 and 7,269.83

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Solution

The fourth proportional to 18,948.23, 28,406.15 and 7,269.83 is: 10,898.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.23 : 28,406.15 = 7,269.83 : x
  2. Step 2: Convert to fraction form
    18,948.23/28,406.15 = 7,269.83/x
  3. Step 3: Cross multiply
    18,948.23x = 28,406.15 × 7,269.83
  4. Step 4: Simplify right side
    18,948.23x = 206,507,845.11
  5. Step 5: Solve for x
    x = 206,507,845.11/18,948.23
  6. Step 6: Final answer
    x = 10,898.53

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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.