Home / 13,227.45-19,838.97-4,905.51

Finding the Fourth Proportional to 13,227.45, 19,838.97 and 4,905.51

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Solution

The fourth proportional to 13,227.45, 19,838.97 and 4,905.51 is: 7,357.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.45 : 19,838.97 = 4,905.51 : x
  2. Step 2: Convert to fraction form
    13,227.45/19,838.97 = 4,905.51/x
  3. Step 3: Cross multiply
    13,227.45x = 19,838.97 × 4,905.51
  4. Step 4: Simplify right side
    13,227.45x = 97,320,265.72
  5. Step 5: Solve for x
    x = 97,320,265.72/13,227.45
  6. Step 6: Final answer
    x = 7,357.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.