Home / 19,162.85-28,751.09-7,317.50

Finding the Fourth Proportional to 19,162.85, 28,751.09 and 7,317.50

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Solution

The fourth proportional to 19,162.85, 28,751.09 and 7,317.50 is: 10,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162.85 : 28,751.09 = 7,317.50 : x
  2. Step 2: Convert to fraction form
    19,162.85/28,751.09 = 7,317.50/x
  3. Step 3: Cross multiply
    19,162.85x = 28,751.09 × 7,317.50
  4. Step 4: Simplify right side
    19,162.85x = 210,385,920.73
  5. Step 5: Solve for x
    x = 210,385,920.73/19,162.85
  6. Step 6: Final answer
    x = 10,978.85

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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.