Home / 13,913.64-19,200.78-8,252.28

Finding the Fourth Proportional to 13,913.64, 19,200.78 and 8,252.28

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Solution

The fourth proportional to 13,913.64, 19,200.78 and 8,252.28 is: 11,388.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.64 : 19,200.78 = 8,252.28 : x
  2. Step 2: Convert to fraction form
    13,913.64/19,200.78 = 8,252.28/x
  3. Step 3: Cross multiply
    13,913.64x = 19,200.78 × 8,252.28
  4. Step 4: Simplify right side
    13,913.64x = 158,450,212.78
  5. Step 5: Solve for x
    x = 158,450,212.78/13,913.64
  6. Step 6: Final answer
    x = 11,388.12

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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.