Home / 11,599.47-16,015.59-7,129.22

Finding the Fourth Proportional to 11,599.47, 16,015.59 and 7,129.22

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Solution

The fourth proportional to 11,599.47, 16,015.59 and 7,129.22 is: 9,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,599.47 : 16,015.59 = 7,129.22 : x
  2. Step 2: Convert to fraction form
    11,599.47/16,015.59 = 7,129.22/x
  3. Step 3: Cross multiply
    11,599.47x = 16,015.59 × 7,129.22
  4. Step 4: Simplify right side
    11,599.47x = 114,178,584.46
  5. Step 5: Solve for x
    x = 114,178,584.46/11,599.47
  6. Step 6: Final answer
    x = 9,843.43

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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.