Home / 11,311.38-15,611.40-6,595.02

Finding the Fourth Proportional to 11,311.38, 15,611.40 and 6,595.02

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Solution

The fourth proportional to 11,311.38, 15,611.40 and 6,595.02 is: 9,102.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.38 : 15,611.40 = 6,595.02 : x
  2. Step 2: Convert to fraction form
    11,311.38/15,611.40 = 6,595.02/x
  3. Step 3: Cross multiply
    11,311.38x = 15,611.40 × 6,595.02
  4. Step 4: Simplify right side
    11,311.38x = 102,957,495.23
  5. Step 5: Solve for x
    x = 102,957,495.23/11,311.38
  6. Step 6: Final answer
    x = 9,102.12

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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.