Home / 11,881.48-17,812.74-5,638.36

Finding the Fourth Proportional to 11,881.48, 17,812.74 and 5,638.36

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Solution

The fourth proportional to 11,881.48, 17,812.74 and 5,638.36 is: 8,453.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.48 : 17,812.74 = 5,638.36 : x
  2. Step 2: Convert to fraction form
    11,881.48/17,812.74 = 5,638.36/x
  3. Step 3: Cross multiply
    11,881.48x = 17,812.74 × 5,638.36
  4. Step 4: Simplify right side
    11,881.48x = 100,434,640.71
  5. Step 5: Solve for x
    x = 100,434,640.71/11,881.48
  6. Step 6: Final answer
    x = 8,453.04

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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.