Home / 13,076.58-18,050.31-7,771.38

Finding the Fourth Proportional to 13,076.58, 18,050.31 and 7,771.38

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Solution

The fourth proportional to 13,076.58, 18,050.31 and 7,771.38 is: 10,727.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.58 : 18,050.31 = 7,771.38 : x
  2. Step 2: Convert to fraction form
    13,076.58/18,050.31 = 7,771.38/x
  3. Step 3: Cross multiply
    13,076.58x = 18,050.31 × 7,771.38
  4. Step 4: Simplify right side
    13,076.58x = 140,275,818.13
  5. Step 5: Solve for x
    x = 140,275,818.13/13,076.58
  6. Step 6: Final answer
    x = 10,727.26

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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.