Home / 10,719.56-16,080.05-2,928.38

Finding the Fourth Proportional to 10,719.56, 16,080.05 and 2,928.38

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Solution

The fourth proportional to 10,719.56, 16,080.05 and 2,928.38 is: 4,392.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.56 : 16,080.05 = 2,928.38 : x
  2. Step 2: Convert to fraction form
    10,719.56/16,080.05 = 2,928.38/x
  3. Step 3: Cross multiply
    10,719.56x = 16,080.05 × 2,928.38
  4. Step 4: Simplify right side
    10,719.56x = 47,088,423.74
  5. Step 5: Solve for x
    x = 47,088,423.74/10,719.56
  6. Step 6: Final answer
    x = 4,392.76

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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.