Home / 11,007.40-16,511.10-7,116.20

Finding the Fourth Proportional to 11,007.40, 16,511.10 and 7,116.20

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Solution

The fourth proportional to 11,007.40, 16,511.10 and 7,116.20 is: 10,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.40 : 16,511.10 = 7,116.20 : x
  2. Step 2: Convert to fraction form
    11,007.40/16,511.10 = 7,116.20/x
  3. Step 3: Cross multiply
    11,007.40x = 16,511.10 × 7,116.20
  4. Step 4: Simplify right side
    11,007.40x = 117,496,289.82
  5. Step 5: Solve for x
    x = 117,496,289.82/11,007.40
  6. Step 6: Final answer
    x = 10,674.30

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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.