Home / 12,217.76-18,326.99-4,319.16

Finding the Fourth Proportional to 12,217.76, 18,326.99 and 4,319.16

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Solution

The fourth proportional to 12,217.76, 18,326.99 and 4,319.16 is: 6,478.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.76 : 18,326.99 = 4,319.16 : x
  2. Step 2: Convert to fraction form
    12,217.76/18,326.99 = 4,319.16/x
  3. Step 3: Cross multiply
    12,217.76x = 18,326.99 × 4,319.16
  4. Step 4: Simplify right side
    12,217.76x = 79,157,180.53
  5. Step 5: Solve for x
    x = 79,157,180.53/12,217.76
  6. Step 6: Final answer
    x = 6,478.86

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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.