Home / 13,742.33-18,964.43-7,773.87

Finding the Fourth Proportional to 13,742.33, 18,964.43 and 7,773.87

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Solution

The fourth proportional to 13,742.33, 18,964.43 and 7,773.87 is: 10,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.33 : 18,964.43 = 7,773.87 : x
  2. Step 2: Convert to fraction form
    13,742.33/18,964.43 = 7,773.87/x
  3. Step 3: Cross multiply
    13,742.33x = 18,964.43 × 7,773.87
  4. Step 4: Simplify right side
    13,742.33x = 147,427,045.69
  5. Step 5: Solve for x
    x = 147,427,045.69/13,742.33
  6. Step 6: Final answer
    x = 10,727.95

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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.