Home / 13,283.28-18,331.80-8,799.24

Finding the Fourth Proportional to 13,283.28, 18,331.80 and 8,799.24

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Solution

The fourth proportional to 13,283.28, 18,331.80 and 8,799.24 is: 12,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.28 : 18,331.80 = 8,799.24 : x
  2. Step 2: Convert to fraction form
    13,283.28/18,331.80 = 8,799.24/x
  3. Step 3: Cross multiply
    13,283.28x = 18,331.80 × 8,799.24
  4. Step 4: Simplify right side
    13,283.28x = 161,305,907.83
  5. Step 5: Solve for x
    x = 161,305,907.83/13,283.28
  6. Step 6: Final answer
    x = 12,143.53

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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.