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Finding the Fourth Proportional to 9,417.39, 12,996 and 5,225.64

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Solution

The fourth proportional to 9,417.39, 12,996 and 5,225.64 is: 7,211.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,417.39 : 12,996 = 5,225.64 : x
  2. Step 2: Convert to fraction form
    9,417.39/12,996 = 5,225.64/x
  3. Step 3: Cross multiply
    9,417.39x = 12,996 × 5,225.64
  4. Step 4: Simplify right side
    9,417.39x = 67,912,417.44
  5. Step 5: Solve for x
    x = 67,912,417.44/9,417.39
  6. Step 6: Final answer
    x = 7,211.38

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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.