Home / 7,511.40-11,267.10-6,877.80

Finding the Fourth Proportional to 7,511.40, 11,267.10 and 6,877.80

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Solution

The fourth proportional to 7,511.40, 11,267.10 and 6,877.80 is: 10,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.40 : 11,267.10 = 6,877.80 : x
  2. Step 2: Convert to fraction form
    7,511.40/11,267.10 = 6,877.80/x
  3. Step 3: Cross multiply
    7,511.40x = 11,267.10 × 6,877.80
  4. Step 4: Simplify right side
    7,511.40x = 77,492,860.38
  5. Step 5: Solve for x
    x = 77,492,860.38/7,511.40
  6. Step 6: Final answer
    x = 10,316.70

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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.