Home / 10,720.95-16,081.87-3,330.40

Finding the Fourth Proportional to 10,720.95, 16,081.87 and 3,330.40

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Solution

The fourth proportional to 10,720.95, 16,081.87 and 3,330.40 is: 4,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.95 : 16,081.87 = 3,330.40 : x
  2. Step 2: Convert to fraction form
    10,720.95/16,081.87 = 3,330.40/x
  3. Step 3: Cross multiply
    10,720.95x = 16,081.87 × 3,330.40
  4. Step 4: Simplify right side
    10,720.95x = 53,559,059.85
  5. Step 5: Solve for x
    x = 53,559,059.85/10,720.95
  6. Step 6: Final answer
    x = 4,995.74

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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.