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Finding the Fourth Proportional to 13,873.72, 19,141.02 and 8,569.72

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Solution

The fourth proportional to 13,873.72, 19,141.02 and 8,569.72 is: 11,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.72 : 19,141.02 = 8,569.72 : x
  2. Step 2: Convert to fraction form
    13,873.72/19,141.02 = 8,569.72/x
  3. Step 3: Cross multiply
    13,873.72x = 19,141.02 × 8,569.72
  4. Step 4: Simplify right side
    13,873.72x = 164,033,181.91
  5. Step 5: Solve for x
    x = 164,033,181.91/13,873.72
  6. Step 6: Final answer
    x = 11,823.30

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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.