Home / 15,077.39-20,806.72-8,362.95

Finding the Fourth Proportional to 15,077.39, 20,806.72 and 8,362.95

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Solution

The fourth proportional to 15,077.39, 20,806.72 and 8,362.95 is: 11,540.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.39 : 20,806.72 = 8,362.95 : x
  2. Step 2: Convert to fraction form
    15,077.39/20,806.72 = 8,362.95/x
  3. Step 3: Cross multiply
    15,077.39x = 20,806.72 × 8,362.95
  4. Step 4: Simplify right side
    15,077.39x = 174,005,507.13
  5. Step 5: Solve for x
    x = 174,005,507.13/15,077.39
  6. Step 6: Final answer
    x = 11,540.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.