Home / 13,601.40-18,770.28-7,633.56

Finding the Fourth Proportional to 13,601.40, 18,770.28 and 7,633.56

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Solution

The fourth proportional to 13,601.40, 18,770.28 and 7,633.56 is: 10,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.40 : 18,770.28 = 7,633.56 : x
  2. Step 2: Convert to fraction form
    13,601.40/18,770.28 = 7,633.56/x
  3. Step 3: Cross multiply
    13,601.40x = 18,770.28 × 7,633.56
  4. Step 4: Simplify right side
    13,601.40x = 143,284,058.60
  5. Step 5: Solve for x
    x = 143,284,058.60/13,601.40
  6. Step 6: Final answer
    x = 10,534.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.