Home / 13,359.40-18,427.92-8,822.12

Finding the Fourth Proportional to 13,359.40, 18,427.92 and 8,822.12

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Solution

The fourth proportional to 13,359.40, 18,427.92 and 8,822.12 is: 12,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.40 : 18,427.92 = 8,822.12 : x
  2. Step 2: Convert to fraction form
    13,359.40/18,427.92 = 8,822.12/x
  3. Step 3: Cross multiply
    13,359.40x = 18,427.92 × 8,822.12
  4. Step 4: Simplify right side
    13,359.40x = 162,573,245.99
  5. Step 5: Solve for x
    x = 162,573,245.99/13,359.40
  6. Step 6: Final answer
    x = 12,169.20

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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.