Home / 13,335.39-19,999.98-3,974.55

Finding the Fourth Proportional to 13,335.39, 19,999.98 and 3,974.55

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Solution

The fourth proportional to 13,335.39, 19,999.98 and 3,974.55 is: 5,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.39 : 19,999.98 = 3,974.55 : x
  2. Step 2: Convert to fraction form
    13,335.39/19,999.98 = 3,974.55/x
  3. Step 3: Cross multiply
    13,335.39x = 19,999.98 × 3,974.55
  4. Step 4: Simplify right side
    13,335.39x = 79,490,920.51
  5. Step 5: Solve for x
    x = 79,490,920.51/13,335.39
  6. Step 6: Final answer
    x = 5,960.90

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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.