Home / 13,277.38-18,322.79-7,309.00

Finding the Fourth Proportional to 13,277.38, 18,322.79 and 7,309.00

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Solution

The fourth proportional to 13,277.38, 18,322.79 and 7,309.00 is: 10,086.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.38 : 18,322.79 = 7,309.00 : x
  2. Step 2: Convert to fraction form
    13,277.38/18,322.79 = 7,309.00/x
  3. Step 3: Cross multiply
    13,277.38x = 18,322.79 × 7,309.00
  4. Step 4: Simplify right side
    13,277.38x = 133,921,281.37
  5. Step 5: Solve for x
    x = 133,921,281.37/13,277.38
  6. Step 6: Final answer
    x = 10,086.43

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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.