Home / 13,917.72-19,210.14-8,609.52

Finding the Fourth Proportional to 13,917.72, 19,210.14 and 8,609.52

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Solution

The fourth proportional to 13,917.72, 19,210.14 and 8,609.52 is: 11,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.72 : 19,210.14 = 8,609.52 : x
  2. Step 2: Convert to fraction form
    13,917.72/19,210.14 = 8,609.52/x
  3. Step 3: Cross multiply
    13,917.72x = 19,210.14 × 8,609.52
  4. Step 4: Simplify right side
    13,917.72x = 165,390,084.53
  5. Step 5: Solve for x
    x = 165,390,084.53/13,917.72
  6. Step 6: Final answer
    x = 11,883.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.