Home / 11,113.50-16,678.44-5,270.12

Finding the Fourth Proportional to 11,113.50, 16,678.44 and 5,270.12

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Solution

The fourth proportional to 11,113.50, 16,678.44 and 5,270.12 is: 7,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.50 : 16,678.44 = 5,270.12 : x
  2. Step 2: Convert to fraction form
    11,113.50/16,678.44 = 5,270.12/x
  3. Step 3: Cross multiply
    11,113.50x = 16,678.44 × 5,270.12
  4. Step 4: Simplify right side
    11,113.50x = 87,897,296.82
  5. Step 5: Solve for x
    x = 87,897,296.82/11,113.50
  6. Step 6: Final answer
    x = 7,909.06

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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.