Home / 14,178.16-21,267.40-5,413.92

Finding the Fourth Proportional to 14,178.16, 21,267.40 and 5,413.92

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Solution

The fourth proportional to 14,178.16, 21,267.40 and 5,413.92 is: 8,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.16 : 21,267.40 = 5,413.92 : x
  2. Step 2: Convert to fraction form
    14,178.16/21,267.40 = 5,413.92/x
  3. Step 3: Cross multiply
    14,178.16x = 21,267.40 × 5,413.92
  4. Step 4: Simplify right side
    14,178.16x = 115,140,002.21
  5. Step 5: Solve for x
    x = 115,140,002.21/14,178.16
  6. Step 6: Final answer
    x = 8,120.94

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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.