Home / 13,869.14-19,142.97-8,560.90

Finding the Fourth Proportional to 13,869.14, 19,142.97 and 8,560.90

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Solution

The fourth proportional to 13,869.14, 19,142.97 and 8,560.90 is: 11,816.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.14 : 19,142.97 = 8,560.90 : x
  2. Step 2: Convert to fraction form
    13,869.14/19,142.97 = 8,560.90/x
  3. Step 3: Cross multiply
    13,869.14x = 19,142.97 × 8,560.90
  4. Step 4: Simplify right side
    13,869.14x = 163,881,043.70
  5. Step 5: Solve for x
    x = 163,881,043.70/13,869.14
  6. Step 6: Final answer
    x = 11,816.24

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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.