Home / 11,719.51-17,574.70-4,221.04

Finding the Fourth Proportional to 11,719.51, 17,574.70 and 4,221.04

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Solution

The fourth proportional to 11,719.51, 17,574.70 and 4,221.04 is: 6,329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.51 : 17,574.70 = 4,221.04 : x
  2. Step 2: Convert to fraction form
    11,719.51/17,574.70 = 4,221.04/x
  3. Step 3: Cross multiply
    11,719.51x = 17,574.70 × 4,221.04
  4. Step 4: Simplify right side
    11,719.51x = 74,183,511.69
  5. Step 5: Solve for x
    x = 74,183,511.69/11,719.51
  6. Step 6: Final answer
    x = 6,329.92

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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.