Home / 14,178.10-21,267.96-5,413.72

Finding the Fourth Proportional to 14,178.10, 21,267.96 and 5,413.72

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Solution

The fourth proportional to 14,178.10, 21,267.96 and 5,413.72 is: 8,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.10 : 21,267.96 = 5,413.72 : x
  2. Step 2: Convert to fraction form
    14,178.10/21,267.96 = 5,413.72/x
  3. Step 3: Cross multiply
    14,178.10x = 21,267.96 × 5,413.72
  4. Step 4: Simplify right side
    14,178.10x = 115,138,780.41
  5. Step 5: Solve for x
    x = 115,138,780.41/14,178.10
  6. Step 6: Final answer
    x = 8,120.89

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1.5x scale

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.