Home / 18,890.62-28,341.50-7,797.94

Finding the Fourth Proportional to 18,890.62, 28,341.50 and 7,797.94

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Solution

The fourth proportional to 18,890.62, 28,341.50 and 7,797.94 is: 11,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.62 : 28,341.50 = 7,797.94 : x
  2. Step 2: Convert to fraction form
    18,890.62/28,341.50 = 7,797.94/x
  3. Step 3: Cross multiply
    18,890.62x = 28,341.50 × 7,797.94
  4. Step 4: Simplify right side
    18,890.62x = 221,005,206.67
  5. Step 5: Solve for x
    x = 221,005,206.67/18,890.62
  6. Step 6: Final answer
    x = 11,699.20

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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.