Home / 11,857.79-16,367.15-7,827.56

Finding the Fourth Proportional to 11,857.79, 16,367.15 and 7,827.56

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Solution

The fourth proportional to 11,857.79, 16,367.15 and 7,827.56 is: 10,804.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,857.79 : 16,367.15 = 7,827.56 : x
  2. Step 2: Convert to fraction form
    11,857.79/16,367.15 = 7,827.56/x
  3. Step 3: Cross multiply
    11,857.79x = 16,367.15 × 7,827.56
  4. Step 4: Simplify right side
    11,857.79x = 128,114,786.39
  5. Step 5: Solve for x
    x = 128,114,786.39/11,857.79
  6. Step 6: Final answer
    x = 10,804.28

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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.