Home / 13,774.15-19,008.21-7,806.97

Finding the Fourth Proportional to 13,774.15, 19,008.21 and 7,806.97

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Solution

The fourth proportional to 13,774.15, 19,008.21 and 7,806.97 is: 10,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.15 : 19,008.21 = 7,806.97 : x
  2. Step 2: Convert to fraction form
    13,774.15/19,008.21 = 7,806.97/x
  3. Step 3: Cross multiply
    13,774.15x = 19,008.21 × 7,806.97
  4. Step 4: Simplify right side
    13,774.15x = 148,396,525.22
  5. Step 5: Solve for x
    x = 148,396,525.22/13,774.15
  6. Step 6: Final answer
    x = 10,773.55

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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.