Home / 13,212.35-18,233.47-7,545.89

Finding the Fourth Proportional to 13,212.35, 18,233.47 and 7,545.89

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Solution

The fourth proportional to 13,212.35, 18,233.47 and 7,545.89 is: 10,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.35 : 18,233.47 = 7,545.89 : x
  2. Step 2: Convert to fraction form
    13,212.35/18,233.47 = 7,545.89/x
  3. Step 3: Cross multiply
    13,212.35x = 18,233.47 × 7,545.89
  4. Step 4: Simplify right side
    13,212.35x = 137,587,813.95
  5. Step 5: Solve for x
    x = 137,587,813.95/13,212.35
  6. Step 6: Final answer
    x = 10,413.58

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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.