Home / 11,325.86-15,630.68-6,611.66

Finding the Fourth Proportional to 11,325.86, 15,630.68 and 6,611.66

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Solution

The fourth proportional to 11,325.86, 15,630.68 and 6,611.66 is: 9,124.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.86 : 15,630.68 = 6,611.66 : x
  2. Step 2: Convert to fraction form
    11,325.86/15,630.68 = 6,611.66/x
  3. Step 3: Cross multiply
    11,325.86x = 15,630.68 × 6,611.66
  4. Step 4: Simplify right side
    11,325.86x = 103,344,741.73
  5. Step 5: Solve for x
    x = 103,344,741.73/11,325.86
  6. Step 6: Final answer
    x = 9,124.67

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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.