Home / 8,929.51-13,383.46-6,447.13

Finding the Fourth Proportional to 8,929.51, 13,383.46 and 6,447.13

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Solution

The fourth proportional to 8,929.51, 13,383.46 and 6,447.13 is: 9,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.51 : 13,383.46 = 6,447.13 : x
  2. Step 2: Convert to fraction form
    8,929.51/13,383.46 = 6,447.13/x
  3. Step 3: Cross multiply
    8,929.51x = 13,383.46 × 6,447.13
  4. Step 4: Simplify right side
    8,929.51x = 86,284,906.47
  5. Step 5: Solve for x
    x = 86,284,906.47/8,929.51
  6. Step 6: Final answer
    x = 9,662.89

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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.