Home / 13,996.60-19,315.31-7,708.97

Finding the Fourth Proportional to 13,996.60, 19,315.31 and 7,708.97

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Solution

The fourth proportional to 13,996.60, 19,315.31 and 7,708.97 is: 10,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.60 : 19,315.31 = 7,708.97 : x
  2. Step 2: Convert to fraction form
    13,996.60/19,315.31 = 7,708.97/x
  3. Step 3: Cross multiply
    13,996.60x = 19,315.31 × 7,708.97
  4. Step 4: Simplify right side
    13,996.60x = 148,901,214.79
  5. Step 5: Solve for x
    x = 148,901,214.79/13,996.60
  6. Step 6: Final answer
    x = 10,638.38

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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.