Home / 13,919.15-19,208.49-7,545.85

Finding the Fourth Proportional to 13,919.15, 19,208.49 and 7,545.85

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Solution

The fourth proportional to 13,919.15, 19,208.49 and 7,545.85 is: 10,413.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.15 : 19,208.49 = 7,545.85 : x
  2. Step 2: Convert to fraction form
    13,919.15/19,208.49 = 7,545.85/x
  3. Step 3: Cross multiply
    13,919.15x = 19,208.49 × 7,545.85
  4. Step 4: Simplify right side
    13,919.15x = 144,944,384.27
  5. Step 5: Solve for x
    x = 144,944,384.27/13,919.15
  6. Step 6: Final answer
    x = 10,413.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.