Home / 7,986.76-11,020.14-4,449.34

Finding the Fourth Proportional to 7,986.76, 11,020.14 and 4,449.34

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Solution

The fourth proportional to 7,986.76, 11,020.14 and 4,449.34 is: 6,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.76 : 11,020.14 = 4,449.34 : x
  2. Step 2: Convert to fraction form
    7,986.76/11,020.14 = 4,449.34/x
  3. Step 3: Cross multiply
    7,986.76x = 11,020.14 × 4,449.34
  4. Step 4: Simplify right side
    7,986.76x = 49,032,349.71
  5. Step 5: Solve for x
    x = 49,032,349.71/7,986.76
  6. Step 6: Final answer
    x = 6,139.20

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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.