Home / 11,618.08-17,416.86-4,220.80

Finding the Fourth Proportional to 11,618.08, 17,416.86 and 4,220.80

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Solution

The fourth proportional to 11,618.08, 17,416.86 and 4,220.80 is: 6,327.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.08 : 17,416.86 = 4,220.80 : x
  2. Step 2: Convert to fraction form
    11,618.08/17,416.86 = 4,220.80/x
  3. Step 3: Cross multiply
    11,618.08x = 17,416.86 × 4,220.80
  4. Step 4: Simplify right side
    11,618.08x = 73,513,082.69
  5. Step 5: Solve for x
    x = 73,513,082.69/11,618.08
  6. Step 6: Final answer
    x = 6,327.47

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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.