Home / 16,928.76-25,398.90-8,715

Finding the Fourth Proportional to 16,928.76, 25,398.90 and 8,715

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Solution

The fourth proportional to 16,928.76, 25,398.90 and 8,715 is: 13,075.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,928.76 : 25,398.90 = 8,715 : x
  2. Step 2: Convert to fraction form
    16,928.76/25,398.90 = 8,715/x
  3. Step 3: Cross multiply
    16,928.76x = 25,398.90 × 8,715
  4. Step 4: Simplify right side
    16,928.76x = 221,351,413.50
  5. Step 5: Solve for x
    x = 221,351,413.50/16,928.76
  6. Step 6: Final answer
    x = 13,075.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.