Home / 13,867.52-19,147.20-8,569.60

Finding the Fourth Proportional to 13,867.52, 19,147.20 and 8,569.60

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Solution

The fourth proportional to 13,867.52, 19,147.20 and 8,569.60 is: 11,832.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.52 : 19,147.20 = 8,569.60 : x
  2. Step 2: Convert to fraction form
    13,867.52/19,147.20 = 8,569.60/x
  3. Step 3: Cross multiply
    13,867.52x = 19,147.20 × 8,569.60
  4. Step 4: Simplify right side
    13,867.52x = 164,083,845.12
  5. Step 5: Solve for x
    x = 164,083,845.12/13,867.52
  6. Step 6: Final answer
    x = 11,832.24

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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.