Home / 11,719.48-17,460.86-11,162.20

Finding the Fourth Proportional to 11,719.48, 17,460.86 and 11,162.20

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Solution

The fourth proportional to 11,719.48, 17,460.86 and 11,162.20 is: 16,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.48 : 17,460.86 = 11,162.20 : x
  2. Step 2: Convert to fraction form
    11,719.48/17,460.86 = 11,162.20/x
  3. Step 3: Cross multiply
    11,719.48x = 17,460.86 × 11,162.20
  4. Step 4: Simplify right side
    11,719.48x = 194,901,611.49
  5. Step 5: Solve for x
    x = 194,901,611.49/11,719.48
  6. Step 6: Final answer
    x = 16,630.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.