Home / 11,432.22-15,778.71-7,237.50

Finding the Fourth Proportional to 11,432.22, 15,778.71 and 7,237.50

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Solution

The fourth proportional to 11,432.22, 15,778.71 and 7,237.50 is: 9,989.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,432.22 : 15,778.71 = 7,237.50 : x
  2. Step 2: Convert to fraction form
    11,432.22/15,778.71 = 7,237.50/x
  3. Step 3: Cross multiply
    11,432.22x = 15,778.71 × 7,237.50
  4. Step 4: Simplify right side
    11,432.22x = 114,198,413.63
  5. Step 5: Solve for x
    x = 114,198,413.63/11,432.22
  6. Step 6: Final answer
    x = 9,989.17

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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.