Home / 13,868.70-19,145.19-8,566.62

Finding the Fourth Proportional to 13,868.70, 19,145.19 and 8,566.62

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Solution

The fourth proportional to 13,868.70, 19,145.19 and 8,566.62 is: 11,825.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.70 : 19,145.19 = 8,566.62 : x
  2. Step 2: Convert to fraction form
    13,868.70/19,145.19 = 8,566.62/x
  3. Step 3: Cross multiply
    13,868.70x = 19,145.19 × 8,566.62
  4. Step 4: Simplify right side
    13,868.70x = 164,009,567.56
  5. Step 5: Solve for x
    x = 164,009,567.56/13,868.70
  6. Step 6: Final answer
    x = 11,825.88

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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.