Home / 14,135.45-21,204.21-4,275.52

Finding the Fourth Proportional to 14,135.45, 21,204.21 and 4,275.52

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Solution

The fourth proportional to 14,135.45, 21,204.21 and 4,275.52 is: 6,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.45 : 21,204.21 = 4,275.52 : x
  2. Step 2: Convert to fraction form
    14,135.45/21,204.21 = 4,275.52/x
  3. Step 3: Cross multiply
    14,135.45x = 21,204.21 × 4,275.52
  4. Step 4: Simplify right side
    14,135.45x = 90,659,023.94
  5. Step 5: Solve for x
    x = 90,659,023.94/14,135.45
  6. Step 6: Final answer
    x = 6,413.59

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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.