Home / 12,342.89-17,015.47-8,799.95

Finding the Fourth Proportional to 12,342.89, 17,015.47 and 8,799.95

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Solution

The fourth proportional to 12,342.89, 17,015.47 and 8,799.95 is: 12,131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.89 : 17,015.47 = 8,799.95 : x
  2. Step 2: Convert to fraction form
    12,342.89/17,015.47 = 8,799.95/x
  3. Step 3: Cross multiply
    12,342.89x = 17,015.47 × 8,799.95
  4. Step 4: Simplify right side
    12,342.89x = 149,735,305.77
  5. Step 5: Solve for x
    x = 149,735,305.77/12,342.89
  6. Step 6: Final answer
    x = 12,131.30

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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.