Home / 12,876.48-19,272.96-6,945.12

Finding the Fourth Proportional to 12,876.48, 19,272.96 and 6,945.12

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Solution

The fourth proportional to 12,876.48, 19,272.96 and 6,945.12 is: 10,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.48 : 19,272.96 = 6,945.12 : x
  2. Step 2: Convert to fraction form
    12,876.48/19,272.96 = 6,945.12/x
  3. Step 3: Cross multiply
    12,876.48x = 19,272.96 × 6,945.12
  4. Step 4: Simplify right side
    12,876.48x = 133,853,019.96
  5. Step 5: Solve for x
    x = 133,853,019.96/12,876.48
  6. Step 6: Final answer
    x = 10,395.16

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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.