Home / 13,082.60-18,055.78-9,933.80

Finding the Fourth Proportional to 13,082.60, 18,055.78 and 9,933.80

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Solution

The fourth proportional to 13,082.60, 18,055.78 and 9,933.80 is: 13,710.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.60 : 18,055.78 = 9,933.80 : x
  2. Step 2: Convert to fraction form
    13,082.60/18,055.78 = 9,933.80/x
  3. Step 3: Cross multiply
    13,082.60x = 18,055.78 × 9,933.80
  4. Step 4: Simplify right side
    13,082.60x = 179,362,507.36
  5. Step 5: Solve for x
    x = 179,362,507.36/13,082.60
  6. Step 6: Final answer
    x = 13,710.00

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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.