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Finding the Fourth Proportional to 7,181.80, 10,772.70 and 7,060.30

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Solution

The fourth proportional to 7,181.80, 10,772.70 and 7,060.30 is: 10,590.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.80 : 10,772.70 = 7,060.30 : x
  2. Step 2: Convert to fraction form
    7,181.80/10,772.70 = 7,060.30/x
  3. Step 3: Cross multiply
    7,181.80x = 10,772.70 × 7,060.30
  4. Step 4: Simplify right side
    7,181.80x = 76,058,493.81
  5. Step 5: Solve for x
    x = 76,058,493.81/7,181.80
  6. Step 6: Final answer
    x = 10,590.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.