Home / 7,964.30-10,991.07-4,427.51

Finding the Fourth Proportional to 7,964.30, 10,991.07 and 4,427.51

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Solution

The fourth proportional to 7,964.30, 10,991.07 and 4,427.51 is: 6,110.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.30 : 10,991.07 = 4,427.51 : x
  2. Step 2: Convert to fraction form
    7,964.30/10,991.07 = 4,427.51/x
  3. Step 3: Cross multiply
    7,964.30x = 10,991.07 × 4,427.51
  4. Step 4: Simplify right side
    7,964.30x = 48,663,017.38
  5. Step 5: Solve for x
    x = 48,663,017.38/7,964.30
  6. Step 6: Final answer
    x = 6,110.14

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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.