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Finding the Fourth Proportional to 8,748.36, 12,070.08 and 7,906.37

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Solution

The fourth proportional to 8,748.36, 12,070.08 and 7,906.37 is: 10,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.36 : 12,070.08 = 7,906.37 : x
  2. Step 2: Convert to fraction form
    8,748.36/12,070.08 = 7,906.37/x
  3. Step 3: Cross multiply
    8,748.36x = 12,070.08 × 7,906.37
  4. Step 4: Simplify right side
    8,748.36x = 95,430,458.06
  5. Step 5: Solve for x
    x = 95,430,458.06/8,748.36
  6. Step 6: Final answer
    x = 10,908.38

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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.