Home / 18,808.08-25,966.96-12,105.36

Finding the Fourth Proportional to 18,808.08, 25,966.96 and 12,105.36

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Solution

The fourth proportional to 18,808.08, 25,966.96 and 12,105.36 is: 16,713.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808.08 : 25,966.96 = 12,105.36 : x
  2. Step 2: Convert to fraction form
    18,808.08/25,966.96 = 12,105.36/x
  3. Step 3: Cross multiply
    18,808.08x = 25,966.96 × 12,105.36
  4. Step 4: Simplify right side
    18,808.08x = 314,339,398.91
  5. Step 5: Solve for x
    x = 314,339,398.91/18,808.08
  6. Step 6: Final answer
    x = 16,713.00

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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.