Home / 19,579.36-29,379.81-8,486.14

Finding the Fourth Proportional to 19,579.36, 29,379.81 and 8,486.14

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Solution

The fourth proportional to 19,579.36, 29,379.81 and 8,486.14 is: 12,733.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.36 : 29,379.81 = 8,486.14 : x
  2. Step 2: Convert to fraction form
    19,579.36/29,379.81 = 8,486.14/x
  3. Step 3: Cross multiply
    19,579.36x = 29,379.81 × 8,486.14
  4. Step 4: Simplify right side
    19,579.36x = 249,321,180.83
  5. Step 5: Solve for x
    x = 249,321,180.83/19,579.36
  6. Step 6: Final answer
    x = 12,733.88

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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.