Home / 13,186.40-19,747.60-7,016.80

Finding the Fourth Proportional to 13,186.40, 19,747.60 and 7,016.80

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Solution

The fourth proportional to 13,186.40, 19,747.60 and 7,016.80 is: 10,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.40 : 19,747.60 = 7,016.80 : x
  2. Step 2: Convert to fraction form
    13,186.40/19,747.60 = 7,016.80/x
  3. Step 3: Cross multiply
    13,186.40x = 19,747.60 × 7,016.80
  4. Step 4: Simplify right side
    13,186.40x = 138,564,959.68
  5. Step 5: Solve for x
    x = 138,564,959.68/13,186.40
  6. Step 6: Final answer
    x = 10,508.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.