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Finding the Fourth Proportional to 12,403.71, 17,117.39 and 7,626.22

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Solution

The fourth proportional to 12,403.71, 17,117.39 and 7,626.22 is: 10,524.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.71 : 17,117.39 = 7,626.22 : x
  2. Step 2: Convert to fraction form
    12,403.71/17,117.39 = 7,626.22/x
  3. Step 3: Cross multiply
    12,403.71x = 17,117.39 × 7,626.22
  4. Step 4: Simplify right side
    12,403.71x = 130,540,958.24
  5. Step 5: Solve for x
    x = 130,540,958.24/12,403.71
  6. Step 6: Final answer
    x = 10,524.35

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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.