Home / 18,282.06-27,420.95-5,135.55

Finding the Fourth Proportional to 18,282.06, 27,420.95 and 5,135.55

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Solution

The fourth proportional to 18,282.06, 27,420.95 and 5,135.55 is: 7,702.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.06 : 27,420.95 = 5,135.55 : x
  2. Step 2: Convert to fraction form
    18,282.06/27,420.95 = 5,135.55/x
  3. Step 3: Cross multiply
    18,282.06x = 27,420.95 × 5,135.55
  4. Step 4: Simplify right side
    18,282.06x = 140,821,634.09
  5. Step 5: Solve for x
    x = 140,821,634.09/18,282.06
  6. Step 6: Final answer
    x = 7,702.72

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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.