Home / 9,175.85-12,663.45-5,197.67

Finding the Fourth Proportional to 9,175.85, 12,663.45 and 5,197.67

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Solution

The fourth proportional to 9,175.85, 12,663.45 and 5,197.67 is: 7,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,175.85 : 12,663.45 = 5,197.67 : x
  2. Step 2: Convert to fraction form
    9,175.85/12,663.45 = 5,197.67/x
  3. Step 3: Cross multiply
    9,175.85x = 12,663.45 × 5,197.67
  4. Step 4: Simplify right side
    9,175.85x = 65,820,370.84
  5. Step 5: Solve for x
    x = 65,820,370.84/9,175.85
  6. Step 6: Final answer
    x = 7,173.22

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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.