Home / 10,719.94-16,080.36-2,928.76

Finding the Fourth Proportional to 10,719.94, 16,080.36 and 2,928.76

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Solution

The fourth proportional to 10,719.94, 16,080.36 and 2,928.76 is: 4,393.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.94 : 16,080.36 = 2,928.76 : x
  2. Step 2: Convert to fraction form
    10,719.94/16,080.36 = 2,928.76/x
  3. Step 3: Cross multiply
    10,719.94x = 16,080.36 × 2,928.76
  4. Step 4: Simplify right side
    10,719.94x = 47,095,515.15
  5. Step 5: Solve for x
    x = 47,095,515.15/10,719.94
  6. Step 6: Final answer
    x = 4,393.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.