Home / 7,091.22-10,690.32-6,615.66

Finding the Fourth Proportional to 7,091.22, 10,690.32 and 6,615.66

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Solution

The fourth proportional to 7,091.22, 10,690.32 and 6,615.66 is: 9,973.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.22 : 10,690.32 = 6,615.66 : x
  2. Step 2: Convert to fraction form
    7,091.22/10,690.32 = 6,615.66/x
  3. Step 3: Cross multiply
    7,091.22x = 10,690.32 × 6,615.66
  4. Step 4: Simplify right side
    7,091.22x = 70,723,522.41
  5. Step 5: Solve for x
    x = 70,723,522.41/7,091.22
  6. Step 6: Final answer
    x = 9,973.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.