Home / 13,881.35-19,157.78-8,850.17

Finding the Fourth Proportional to 13,881.35, 19,157.78 and 8,850.17

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Solution

The fourth proportional to 13,881.35, 19,157.78 and 8,850.17 is: 12,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.35 : 19,157.78 = 8,850.17 : x
  2. Step 2: Convert to fraction form
    13,881.35/19,157.78 = 8,850.17/x
  3. Step 3: Cross multiply
    13,881.35x = 19,157.78 × 8,850.17
  4. Step 4: Simplify right side
    13,881.35x = 169,549,609.82
  5. Step 5: Solve for x
    x = 169,549,609.82/13,881.35
  6. Step 6: Final answer
    x = 12,214.20

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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.