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Finding the Fourth Proportional to 8,609.51, 12,903.91 and 4,447.26

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Solution

The fourth proportional to 8,609.51, 12,903.91 and 4,447.26 is: 6,665.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.51 : 12,903.91 = 4,447.26 : x
  2. Step 2: Convert to fraction form
    8,609.51/12,903.91 = 4,447.26/x
  3. Step 3: Cross multiply
    8,609.51x = 12,903.91 × 4,447.26
  4. Step 4: Simplify right side
    8,609.51x = 57,387,031.67
  5. Step 5: Solve for x
    x = 57,387,031.67/8,609.51
  6. Step 6: Final answer
    x = 6,665.54

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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.