Home / 13,608.54-18,777.51-8,563.95

Finding the Fourth Proportional to 13,608.54, 18,777.51 and 8,563.95

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Solution

The fourth proportional to 13,608.54, 18,777.51 and 8,563.95 is: 11,816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.54 : 18,777.51 = 8,563.95 : x
  2. Step 2: Convert to fraction form
    13,608.54/18,777.51 = 8,563.95/x
  3. Step 3: Cross multiply
    13,608.54x = 18,777.51 × 8,563.95
  4. Step 4: Simplify right side
    13,608.54x = 160,809,656.76
  5. Step 5: Solve for x
    x = 160,809,656.76/13,608.54
  6. Step 6: Final answer
    x = 11,816.82

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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.