Home / 11,316.56-16,981.44-4,742.24

Finding the Fourth Proportional to 11,316.56, 16,981.44 and 4,742.24

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Solution

The fourth proportional to 11,316.56, 16,981.44 and 4,742.24 is: 7,116.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.56 : 16,981.44 = 4,742.24 : x
  2. Step 2: Convert to fraction form
    11,316.56/16,981.44 = 4,742.24/x
  3. Step 3: Cross multiply
    11,316.56x = 16,981.44 × 4,742.24
  4. Step 4: Simplify right side
    11,316.56x = 80,530,064.03
  5. Step 5: Solve for x
    x = 80,530,064.03/11,316.56
  6. Step 6: Final answer
    x = 7,116.13

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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.