Home / 10,511.10-15,771.43-3,937.79

Finding the Fourth Proportional to 10,511.10, 15,771.43 and 3,937.79

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Solution

The fourth proportional to 10,511.10, 15,771.43 and 3,937.79 is: 5,908.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.10 : 15,771.43 = 3,937.79 : x
  2. Step 2: Convert to fraction form
    10,511.10/15,771.43 = 3,937.79/x
  3. Step 3: Cross multiply
    10,511.10x = 15,771.43 × 3,937.79
  4. Step 4: Simplify right side
    10,511.10x = 62,104,505.40
  5. Step 5: Solve for x
    x = 62,104,505.40/10,511.10
  6. Step 6: Final answer
    x = 5,908.47

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1.5x scale

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.