Home / 12,801.30-17,656.68-8,316.73

Finding the Fourth Proportional to 12,801.30, 17,656.68 and 8,316.73

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Solution

The fourth proportional to 12,801.30, 17,656.68 and 8,316.73 is: 11,471.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801.30 : 17,656.68 = 8,316.73 : x
  2. Step 2: Convert to fraction form
    12,801.30/17,656.68 = 8,316.73/x
  3. Step 3: Cross multiply
    12,801.30x = 17,656.68 × 8,316.73
  4. Step 4: Simplify right side
    12,801.30x = 146,845,840.26
  5. Step 5: Solve for x
    x = 146,845,840.26/12,801.30
  6. Step 6: Final answer
    x = 11,471.17

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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.