Home / 7,402.66-11,118.11-4,288.91

Finding the Fourth Proportional to 7,402.66, 11,118.11 and 4,288.91

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Solution

The fourth proportional to 7,402.66, 11,118.11 and 4,288.91 is: 6,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.66 : 11,118.11 = 4,288.91 : x
  2. Step 2: Convert to fraction form
    7,402.66/11,118.11 = 4,288.91/x
  3. Step 3: Cross multiply
    7,402.66x = 11,118.11 × 4,288.91
  4. Step 4: Simplify right side
    7,402.66x = 47,684,496.13
  5. Step 5: Solve for x
    x = 47,684,496.13/7,402.66
  6. Step 6: Final answer
    x = 6,441.54

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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.