Home / 13,604.82-20,415.02-5,283.76

Finding the Fourth Proportional to 13,604.82, 20,415.02 and 5,283.76

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Solution

The fourth proportional to 13,604.82, 20,415.02 and 5,283.76 is: 7,928.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.82 : 20,415.02 = 5,283.76 : x
  2. Step 2: Convert to fraction form
    13,604.82/20,415.02 = 5,283.76/x
  3. Step 3: Cross multiply
    13,604.82x = 20,415.02 × 5,283.76
  4. Step 4: Simplify right side
    13,604.82x = 107,867,988.62
  5. Step 5: Solve for x
    x = 107,867,988.62/13,604.82
  6. Step 6: Final answer
    x = 7,928.66

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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.