Home / 15,008.73-20,713.26-8,637.36

Finding the Fourth Proportional to 15,008.73, 20,713.26 and 8,637.36

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Solution

The fourth proportional to 15,008.73, 20,713.26 and 8,637.36 is: 11,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.73 : 20,713.26 = 8,637.36 : x
  2. Step 2: Convert to fraction form
    15,008.73/20,713.26 = 8,637.36/x
  3. Step 3: Cross multiply
    15,008.73x = 20,713.26 × 8,637.36
  4. Step 4: Simplify right side
    15,008.73x = 178,907,883.39
  5. Step 5: Solve for x
    x = 178,907,883.39/15,008.73
  6. Step 6: Final answer
    x = 11,920.25

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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.