Home / 12,717.28-19,088.34-6,886.36

Finding the Fourth Proportional to 12,717.28, 19,088.34 and 6,886.36

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Solution

The fourth proportional to 12,717.28, 19,088.34 and 6,886.36 is: 10,336.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.28 : 19,088.34 = 6,886.36 : x
  2. Step 2: Convert to fraction form
    12,717.28/19,088.34 = 6,886.36/x
  3. Step 3: Cross multiply
    12,717.28x = 19,088.34 × 6,886.36
  4. Step 4: Simplify right side
    12,717.28x = 131,449,181.04
  5. Step 5: Solve for x
    x = 131,449,181.04/12,717.28
  6. Step 6: Final answer
    x = 10,336.27

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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.