Home / 11,406.57-15,740.91-6,370.88

Finding the Fourth Proportional to 11,406.57, 15,740.91 and 6,370.88

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Solution

The fourth proportional to 11,406.57, 15,740.91 and 6,370.88 is: 8,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.57 : 15,740.91 = 6,370.88 : x
  2. Step 2: Convert to fraction form
    11,406.57/15,740.91 = 6,370.88/x
  3. Step 3: Cross multiply
    11,406.57x = 15,740.91 × 6,370.88
  4. Step 4: Simplify right side
    11,406.57x = 100,283,370.00
  5. Step 5: Solve for x
    x = 100,283,370.00/11,406.57
  6. Step 6: Final answer
    x = 8,791.72

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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.