Home / 12,876.23-17,763.48-8,398.95

Finding the Fourth Proportional to 12,876.23, 17,763.48 and 8,398.95

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Solution

The fourth proportional to 12,876.23, 17,763.48 and 8,398.95 is: 11,586.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.23 : 17,763.48 = 8,398.95 : x
  2. Step 2: Convert to fraction form
    12,876.23/17,763.48 = 8,398.95/x
  3. Step 3: Cross multiply
    12,876.23x = 17,763.48 × 8,398.95
  4. Step 4: Simplify right side
    12,876.23x = 149,194,580.35
  5. Step 5: Solve for x
    x = 149,194,580.35/12,876.23
  6. Step 6: Final answer
    x = 11,586.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.