Home / 14,135.52-21,207.12-4,275.12

Finding the Fourth Proportional to 14,135.52, 21,207.12 and 4,275.12

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Solution

The fourth proportional to 14,135.52, 21,207.12 and 4,275.12 is: 6,413.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.52 : 21,207.12 = 4,275.12 : x
  2. Step 2: Convert to fraction form
    14,135.52/21,207.12 = 4,275.12/x
  3. Step 3: Cross multiply
    14,135.52x = 21,207.12 × 4,275.12
  4. Step 4: Simplify right side
    14,135.52x = 90,662,982.85
  5. Step 5: Solve for x
    x = 90,662,982.85/14,135.52
  6. Step 6: Final answer
    x = 6,413.84

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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.