Home / 11,499.81-17,256.26-4,478.91

Finding the Fourth Proportional to 11,499.81, 17,256.26 and 4,478.91

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Solution

The fourth proportional to 11,499.81, 17,256.26 and 4,478.91 is: 6,720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,499.81 : 17,256.26 = 4,478.91 : x
  2. Step 2: Convert to fraction form
    11,499.81/17,256.26 = 4,478.91/x
  3. Step 3: Cross multiply
    11,499.81x = 17,256.26 × 4,478.91
  4. Step 4: Simplify right side
    11,499.81x = 77,289,213.08
  5. Step 5: Solve for x
    x = 77,289,213.08/11,499.81
  6. Step 6: Final answer
    x = 6,720.91

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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.