Home / 13,279.89-19,932.14-6,710.70

Finding the Fourth Proportional to 13,279.89, 19,932.14 and 6,710.70

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Solution

The fourth proportional to 13,279.89, 19,932.14 and 6,710.70 is: 10,072.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.89 : 19,932.14 = 6,710.70 : x
  2. Step 2: Convert to fraction form
    13,279.89/19,932.14 = 6,710.70/x
  3. Step 3: Cross multiply
    13,279.89x = 19,932.14 × 6,710.70
  4. Step 4: Simplify right side
    13,279.89x = 133,758,628.67
  5. Step 5: Solve for x
    x = 133,758,628.67/13,279.89
  6. Step 6: Final answer
    x = 10,072.27

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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.