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Finding the Fourth Proportional to 8,743.24, 13,124.60 and 8,607.16

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Solution

The fourth proportional to 8,743.24, 13,124.60 and 8,607.16 is: 12,920.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.24 : 13,124.60 = 8,607.16 : x
  2. Step 2: Convert to fraction form
    8,743.24/13,124.60 = 8,607.16/x
  3. Step 3: Cross multiply
    8,743.24x = 13,124.60 × 8,607.16
  4. Step 4: Simplify right side
    8,743.24x = 112,965,532.14
  5. Step 5: Solve for x
    x = 112,965,532.14/8,743.24
  6. Step 6: Final answer
    x = 12,920.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.