Home / 12,261.65-16,920.90-7,545.83

Finding the Fourth Proportional to 12,261.65, 16,920.90 and 7,545.83

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Solution

The fourth proportional to 12,261.65, 16,920.90 and 7,545.83 is: 10,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.65 : 16,920.90 = 7,545.83 : x
  2. Step 2: Convert to fraction form
    12,261.65/16,920.90 = 7,545.83/x
  3. Step 3: Cross multiply
    12,261.65x = 16,920.90 × 7,545.83
  4. Step 4: Simplify right side
    12,261.65x = 127,682,150.24
  5. Step 5: Solve for x
    x = 127,682,150.24/12,261.65
  6. Step 6: Final answer
    x = 10,413.13

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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.