Home / 13,313.97-19,972.11-4,427.46

Finding the Fourth Proportional to 13,313.97, 19,972.11 and 4,427.46

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Solution

The fourth proportional to 13,313.97, 19,972.11 and 4,427.46 is: 6,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.97 : 19,972.11 = 4,427.46 : x
  2. Step 2: Convert to fraction form
    13,313.97/19,972.11 = 4,427.46/x
  3. Step 3: Cross multiply
    13,313.97x = 19,972.11 × 4,427.46
  4. Step 4: Simplify right side
    13,313.97x = 88,425,718.14
  5. Step 5: Solve for x
    x = 88,425,718.14/13,313.97
  6. Step 6: Final answer
    x = 6,641.57

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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.