Home / 13,886.75-19,172.49-8,584.58

Finding the Fourth Proportional to 13,886.75, 19,172.49 and 8,584.58

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Solution

The fourth proportional to 13,886.75, 19,172.49 and 8,584.58 is: 11,852.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.75 : 19,172.49 = 8,584.58 : x
  2. Step 2: Convert to fraction form
    13,886.75/19,172.49 = 8,584.58/x
  3. Step 3: Cross multiply
    13,886.75x = 19,172.49 × 8,584.58
  4. Step 4: Simplify right side
    13,886.75x = 164,587,774.20
  5. Step 5: Solve for x
    x = 164,587,774.20/13,886.75
  6. Step 6: Final answer
    x = 11,852.14

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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.