Home / 11,238.66-16,860.16-4,312.62

Finding the Fourth Proportional to 11,238.66, 16,860.16 and 4,312.62

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Solution

The fourth proportional to 11,238.66, 16,860.16 and 4,312.62 is: 6,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.66 : 16,860.16 = 4,312.62 : x
  2. Step 2: Convert to fraction form
    11,238.66/16,860.16 = 4,312.62/x
  3. Step 3: Cross multiply
    11,238.66x = 16,860.16 × 4,312.62
  4. Step 4: Simplify right side
    11,238.66x = 72,711,463.22
  5. Step 5: Solve for x
    x = 72,711,463.22/11,238.66
  6. Step 6: Final answer
    x = 6,469.76

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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.