Home / 13,302.09-19,947.01-3,938.76

Finding the Fourth Proportional to 13,302.09, 19,947.01 and 3,938.76

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Solution

The fourth proportional to 13,302.09, 19,947.01 and 3,938.76 is: 5,906.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.09 : 19,947.01 = 3,938.76 : x
  2. Step 2: Convert to fraction form
    13,302.09/19,947.01 = 3,938.76/x
  3. Step 3: Cross multiply
    13,302.09x = 19,947.01 × 3,938.76
  4. Step 4: Simplify right side
    13,302.09x = 78,566,485.11
  5. Step 5: Solve for x
    x = 78,566,485.11/13,302.09
  6. Step 6: Final answer
    x = 5,906.33

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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.