Home / 11,924.96-16,455.15-7,143.93

Finding the Fourth Proportional to 11,924.96, 16,455.15 and 7,143.93

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Solution

The fourth proportional to 11,924.96, 16,455.15 and 7,143.93 is: 9,857.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,924.96 : 16,455.15 = 7,143.93 : x
  2. Step 2: Convert to fraction form
    11,924.96/16,455.15 = 7,143.93/x
  3. Step 3: Cross multiply
    11,924.96x = 16,455.15 × 7,143.93
  4. Step 4: Simplify right side
    11,924.96x = 117,554,439.74
  5. Step 5: Solve for x
    x = 117,554,439.74/11,924.96
  6. Step 6: Final answer
    x = 9,857.85

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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.