Home / 12,956.36-19,434.67-8,542.30

Finding the Fourth Proportional to 12,956.36, 19,434.67 and 8,542.30

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Solution

The fourth proportional to 12,956.36, 19,434.67 and 8,542.30 is: 12,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.36 : 19,434.67 = 8,542.30 : x
  2. Step 2: Convert to fraction form
    12,956.36/19,434.67 = 8,542.30/x
  3. Step 3: Cross multiply
    12,956.36x = 19,434.67 × 8,542.30
  4. Step 4: Simplify right side
    12,956.36x = 166,016,781.54
  5. Step 5: Solve for x
    x = 166,016,781.54/12,956.36
  6. Step 6: Final answer
    x = 12,813.54

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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.