Home / 13,132-18,122.16-9,777.70

Finding the Fourth Proportional to 13,132, 18,122.16 and 9,777.70

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Solution

The fourth proportional to 13,132, 18,122.16 and 9,777.70 is: 13,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132 : 18,122.16 = 9,777.70 : x
  2. Step 2: Convert to fraction form
    13,132/18,122.16 = 9,777.70/x
  3. Step 3: Cross multiply
    13,132x = 18,122.16 × 9,777.70
  4. Step 4: Simplify right side
    13,132x = 177,193,043.83
  5. Step 5: Solve for x
    x = 177,193,043.83/13,132
  6. Step 6: Final answer
    x = 13,493.23

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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.