Home / 12,207.93-16,849.40-7,173.78

Finding the Fourth Proportional to 12,207.93, 16,849.40 and 7,173.78

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Solution

The fourth proportional to 12,207.93, 16,849.40 and 7,173.78 is: 9,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.93 : 16,849.40 = 7,173.78 : x
  2. Step 2: Convert to fraction form
    12,207.93/16,849.40 = 7,173.78/x
  3. Step 3: Cross multiply
    12,207.93x = 16,849.40 × 7,173.78
  4. Step 4: Simplify right side
    12,207.93x = 120,873,924.81
  5. Step 5: Solve for x
    x = 120,873,924.81/12,207.93
  6. Step 6: Final answer
    x = 9,901.26

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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.