Home / 13,206.40-19,771.28-10,275.82

Finding the Fourth Proportional to 13,206.40, 19,771.28 and 10,275.82

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Solution

The fourth proportional to 13,206.40, 19,771.28 and 10,275.82 is: 15,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.40 : 19,771.28 = 10,275.82 : x
  2. Step 2: Convert to fraction form
    13,206.40/19,771.28 = 10,275.82/x
  3. Step 3: Cross multiply
    13,206.40x = 19,771.28 × 10,275.82
  4. Step 4: Simplify right side
    13,206.40x = 203,166,114.45
  5. Step 5: Solve for x
    x = 203,166,114.45/13,206.40
  6. Step 6: Final answer
    x = 15,383.91

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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.