Home / 14,247.86-19,660.59-8,280.80

Finding the Fourth Proportional to 14,247.86, 19,660.59 and 8,280.80

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Solution

The fourth proportional to 14,247.86, 19,660.59 and 8,280.80 is: 11,426.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,247.86 : 19,660.59 = 8,280.80 : x
  2. Step 2: Convert to fraction form
    14,247.86/19,660.59 = 8,280.80/x
  3. Step 3: Cross multiply
    14,247.86x = 19,660.59 × 8,280.80
  4. Step 4: Simplify right side
    14,247.86x = 162,805,413.67
  5. Step 5: Solve for x
    x = 162,805,413.67/14,247.86
  6. Step 6: Final answer
    x = 11,426.66

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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.