Home / 13,208.42-18,227.45-7,239.93

Finding the Fourth Proportional to 13,208.42, 18,227.45 and 7,239.93

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Solution

The fourth proportional to 13,208.42, 18,227.45 and 7,239.93 is: 9,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.42 : 18,227.45 = 7,239.93 : x
  2. Step 2: Convert to fraction form
    13,208.42/18,227.45 = 7,239.93/x
  3. Step 3: Cross multiply
    13,208.42x = 18,227.45 × 7,239.93
  4. Step 4: Simplify right side
    13,208.42x = 131,965,425.88
  5. Step 5: Solve for x
    x = 131,965,425.88/13,208.42
  6. Step 6: Final answer
    x = 9,991.01

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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.