Home / 13,340.30-18,412.16-8,795.00

Finding the Fourth Proportional to 13,340.30, 18,412.16 and 8,795.00

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Solution

The fourth proportional to 13,340.30, 18,412.16 and 8,795.00 is: 12,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.30 : 18,412.16 = 8,795.00 : x
  2. Step 2: Convert to fraction form
    13,340.30/18,412.16 = 8,795.00/x
  3. Step 3: Cross multiply
    13,340.30x = 18,412.16 × 8,795.00
  4. Step 4: Simplify right side
    13,340.30x = 161,934,998.73
  5. Step 5: Solve for x
    x = 161,934,998.73/13,340.30
  6. Step 6: Final answer
    x = 12,138.78

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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.