Home / 11,173.82-15,418.15-6,457.19

Finding the Fourth Proportional to 11,173.82, 15,418.15 and 6,457.19

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Solution

The fourth proportional to 11,173.82, 15,418.15 and 6,457.19 is: 8,909.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.82 : 15,418.15 = 6,457.19 : x
  2. Step 2: Convert to fraction form
    11,173.82/15,418.15 = 6,457.19/x
  3. Step 3: Cross multiply
    11,173.82x = 15,418.15 × 6,457.19
  4. Step 4: Simplify right side
    11,173.82x = 99,557,924.00
  5. Step 5: Solve for x
    x = 99,557,924.00/11,173.82
  6. Step 6: Final answer
    x = 8,909.93

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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.