Home / 12,864.96-19,266.63-8,170.27

Finding the Fourth Proportional to 12,864.96, 19,266.63 and 8,170.27

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Solution

The fourth proportional to 12,864.96, 19,266.63 and 8,170.27 is: 12,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.96 : 19,266.63 = 8,170.27 : x
  2. Step 2: Convert to fraction form
    12,864.96/19,266.63 = 8,170.27/x
  3. Step 3: Cross multiply
    12,864.96x = 19,266.63 × 8,170.27
  4. Step 4: Simplify right side
    12,864.96x = 157,413,490.29
  5. Step 5: Solve for x
    x = 157,413,490.29/12,864.96
  6. Step 6: Final answer
    x = 12,235.83

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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.