Home / 18,919.04-28,376.40-5,066.96

Finding the Fourth Proportional to 18,919.04, 28,376.40 and 5,066.96

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Solution

The fourth proportional to 18,919.04, 28,376.40 and 5,066.96 is: 7,599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,919.04 : 28,376.40 = 5,066.96 : x
  2. Step 2: Convert to fraction form
    18,919.04/28,376.40 = 5,066.96/x
  3. Step 3: Cross multiply
    18,919.04x = 28,376.40 × 5,066.96
  4. Step 4: Simplify right side
    18,919.04x = 143,782,083.74
  5. Step 5: Solve for x
    x = 143,782,083.74/18,919.04
  6. Step 6: Final answer
    x = 7,599.86

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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.