Home / 12,917.13-17,828.10-8,444.73

Finding the Fourth Proportional to 12,917.13, 17,828.10 and 8,444.73

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Solution

The fourth proportional to 12,917.13, 17,828.10 and 8,444.73 is: 11,655.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.13 : 17,828.10 = 8,444.73 : x
  2. Step 2: Convert to fraction form
    12,917.13/17,828.10 = 8,444.73/x
  3. Step 3: Cross multiply
    12,917.13x = 17,828.10 × 8,444.73
  4. Step 4: Simplify right side
    12,917.13x = 150,553,490.91
  5. Step 5: Solve for x
    x = 150,553,490.91/12,917.13
  6. Step 6: Final answer
    x = 11,655.34

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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.