Home / 15,517.24-21,413.96-8,443.67

Finding the Fourth Proportional to 15,517.24, 21,413.96 and 8,443.67

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Solution

The fourth proportional to 15,517.24, 21,413.96 and 8,443.67 is: 11,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.24 : 21,413.96 = 8,443.67 : x
  2. Step 2: Convert to fraction form
    15,517.24/21,413.96 = 8,443.67/x
  3. Step 3: Cross multiply
    15,517.24x = 21,413.96 × 8,443.67
  4. Step 4: Simplify right side
    15,517.24x = 180,812,411.63
  5. Step 5: Solve for x
    x = 180,812,411.63/15,517.24
  6. Step 6: Final answer
    x = 11,652.36

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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.