Home / 12,876.20-19,309.03-8,717.35

Finding the Fourth Proportional to 12,876.20, 19,309.03 and 8,717.35

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Solution

The fourth proportional to 12,876.20, 19,309.03 and 8,717.35 is: 13,072.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.20 : 19,309.03 = 8,717.35 : x
  2. Step 2: Convert to fraction form
    12,876.20/19,309.03 = 8,717.35/x
  3. Step 3: Cross multiply
    12,876.20x = 19,309.03 × 8,717.35
  4. Step 4: Simplify right side
    12,876.20x = 168,323,572.67
  5. Step 5: Solve for x
    x = 168,323,572.67/12,876.20
  6. Step 6: Final answer
    x = 13,072.46

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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.