Home / 11,071.41-15,274.87-6,290.79

Finding the Fourth Proportional to 11,071.41, 15,274.87 and 6,290.79

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Solution

The fourth proportional to 11,071.41, 15,274.87 and 6,290.79 is: 8,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,071.41 : 15,274.87 = 6,290.79 : x
  2. Step 2: Convert to fraction form
    11,071.41/15,274.87 = 6,290.79/x
  3. Step 3: Cross multiply
    11,071.41x = 15,274.87 × 6,290.79
  4. Step 4: Simplify right side
    11,071.41x = 96,090,999.45
  5. Step 5: Solve for x
    x = 96,090,999.45/11,071.41
  6. Step 6: Final answer
    x = 8,679.20

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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.