Home / 11,114.12-15,337.76-6,640.45

Finding the Fourth Proportional to 11,114.12, 15,337.76 and 6,640.45

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Solution

The fourth proportional to 11,114.12, 15,337.76 and 6,640.45 is: 9,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.12 : 15,337.76 = 6,640.45 : x
  2. Step 2: Convert to fraction form
    11,114.12/15,337.76 = 6,640.45/x
  3. Step 3: Cross multiply
    11,114.12x = 15,337.76 × 6,640.45
  4. Step 4: Simplify right side
    11,114.12x = 101,849,556.85
  5. Step 5: Solve for x
    x = 101,849,556.85/11,114.12
  6. Step 6: Final answer
    x = 9,163.98

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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.