Home / 7,243.40-9,996.54-4,257.74

Finding the Fourth Proportional to 7,243.40, 9,996.54 and 4,257.74

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Solution

The fourth proportional to 7,243.40, 9,996.54 and 4,257.74 is: 5,876.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.40 : 9,996.54 = 4,257.74 : x
  2. Step 2: Convert to fraction form
    7,243.40/9,996.54 = 4,257.74/x
  3. Step 3: Cross multiply
    7,243.40x = 9,996.54 × 4,257.74
  4. Step 4: Simplify right side
    7,243.40x = 42,562,668.22
  5. Step 5: Solve for x
    x = 42,562,668.22/7,243.40
  6. Step 6: Final answer
    x = 5,876.06

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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.