Home / 11,686.73-16,140.80-7,725.83

Finding the Fourth Proportional to 11,686.73, 16,140.80 and 7,725.83

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Solution

The fourth proportional to 11,686.73, 16,140.80 and 7,725.83 is: 10,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.73 : 16,140.80 = 7,725.83 : x
  2. Step 2: Convert to fraction form
    11,686.73/16,140.80 = 7,725.83/x
  3. Step 3: Cross multiply
    11,686.73x = 16,140.80 × 7,725.83
  4. Step 4: Simplify right side
    11,686.73x = 124,701,015.47
  5. Step 5: Solve for x
    x = 124,701,015.47/11,686.73
  6. Step 6: Final answer
    x = 10,670.31

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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.