Home / 15,239.79-22,859.70-5,379.66

Finding the Fourth Proportional to 15,239.79, 22,859.70 and 5,379.66

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Solution

The fourth proportional to 15,239.79, 22,859.70 and 5,379.66 is: 8,069.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.79 : 22,859.70 = 5,379.66 : x
  2. Step 2: Convert to fraction form
    15,239.79/22,859.70 = 5,379.66/x
  3. Step 3: Cross multiply
    15,239.79x = 22,859.70 × 5,379.66
  4. Step 4: Simplify right side
    15,239.79x = 122,977,413.70
  5. Step 5: Solve for x
    x = 122,977,413.70/15,239.79
  6. Step 6: Final answer
    x = 8,069.50

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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.