Home / 13,279.73-19,931.90-6,710.49

Finding the Fourth Proportional to 13,279.73, 19,931.90 and 6,710.49

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Solution

The fourth proportional to 13,279.73, 19,931.90 and 6,710.49 is: 10,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.73 : 19,931.90 = 6,710.49 : x
  2. Step 2: Convert to fraction form
    13,279.73/19,931.90 = 6,710.49/x
  3. Step 3: Cross multiply
    13,279.73x = 19,931.90 × 6,710.49
  4. Step 4: Simplify right side
    13,279.73x = 133,752,782.08
  5. Step 5: Solve for x
    x = 133,752,782.08/13,279.73
  6. Step 6: Final answer
    x = 10,071.95

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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.