Home / 13,885.63-19,162.45-8,220.27

Finding the Fourth Proportional to 13,885.63, 19,162.45 and 8,220.27

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Solution

The fourth proportional to 13,885.63, 19,162.45 and 8,220.27 is: 11,344.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.63 : 19,162.45 = 8,220.27 : x
  2. Step 2: Convert to fraction form
    13,885.63/19,162.45 = 8,220.27/x
  3. Step 3: Cross multiply
    13,885.63x = 19,162.45 × 8,220.27
  4. Step 4: Simplify right side
    13,885.63x = 157,520,544.93
  5. Step 5: Solve for x
    x = 157,520,544.93/13,885.63
  6. Step 6: Final answer
    x = 11,344.14

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Half scale
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Double scale
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Similar ratio
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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.