Home / 13,313.59-19,966.96-3,951.39

Finding the Fourth Proportional to 13,313.59, 19,966.96 and 3,951.39

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Solution

The fourth proportional to 13,313.59, 19,966.96 and 3,951.39 is: 5,926.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.59 : 19,966.96 = 3,951.39 : x
  2. Step 2: Convert to fraction form
    13,313.59/19,966.96 = 3,951.39/x
  3. Step 3: Cross multiply
    13,313.59x = 19,966.96 × 3,951.39
  4. Step 4: Simplify right side
    13,313.59x = 78,897,236.20
  5. Step 5: Solve for x
    x = 78,897,236.20/13,313.59
  6. Step 6: Final answer
    x = 5,926.07

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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.