Home / 12,451.23-17,189.01-8,205.08

Finding the Fourth Proportional to 12,451.23, 17,189.01 and 8,205.08

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Solution

The fourth proportional to 12,451.23, 17,189.01 and 8,205.08 is: 11,327.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451.23 : 17,189.01 = 8,205.08 : x
  2. Step 2: Convert to fraction form
    12,451.23/17,189.01 = 8,205.08/x
  3. Step 3: Cross multiply
    12,451.23x = 17,189.01 × 8,205.08
  4. Step 4: Simplify right side
    12,451.23x = 141,037,116.23
  5. Step 5: Solve for x
    x = 141,037,116.23/12,451.23
  6. Step 6: Final answer
    x = 11,327.16

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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.