Home / 9,176.72-12,663.84-5,197.44

Finding the Fourth Proportional to 9,176.72, 12,663.84 and 5,197.44

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Solution

The fourth proportional to 9,176.72, 12,663.84 and 5,197.44 is: 7,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.72 : 12,663.84 = 5,197.44 : x
  2. Step 2: Convert to fraction form
    9,176.72/12,663.84 = 5,197.44/x
  3. Step 3: Cross multiply
    9,176.72x = 12,663.84 × 5,197.44
  4. Step 4: Simplify right side
    9,176.72x = 65,819,548.57
  5. Step 5: Solve for x
    x = 65,819,548.57/9,176.72
  6. Step 6: Final answer
    x = 7,172.45

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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.