Home / 18,916.04-28,381.42-7,226.60

Finding the Fourth Proportional to 18,916.04, 28,381.42 and 7,226.60

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Solution

The fourth proportional to 18,916.04, 28,381.42 and 7,226.60 is: 10,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.04 : 28,381.42 = 7,226.60 : x
  2. Step 2: Convert to fraction form
    18,916.04/28,381.42 = 7,226.60/x
  3. Step 3: Cross multiply
    18,916.04x = 28,381.42 × 7,226.60
  4. Step 4: Simplify right side
    18,916.04x = 205,101,169.77
  5. Step 5: Solve for x
    x = 205,101,169.77/18,916.04
  6. Step 6: Final answer
    x = 10,842.71

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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.