Home / 13,885.14-19,141.56-9,899.34

Finding the Fourth Proportional to 13,885.14, 19,141.56 and 9,899.34

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Solution

The fourth proportional to 13,885.14, 19,141.56 and 9,899.34 is: 13,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.14 : 19,141.56 = 9,899.34 : x
  2. Step 2: Convert to fraction form
    13,885.14/19,141.56 = 9,899.34/x
  3. Step 3: Cross multiply
    13,885.14x = 19,141.56 × 9,899.34
  4. Step 4: Simplify right side
    13,885.14x = 189,488,810.57
  5. Step 5: Solve for x
    x = 189,488,810.57/13,885.14
  6. Step 6: Final answer
    x = 13,646.88

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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.