Home / 13,208.86-18,227.46-7,903.63

Finding the Fourth Proportional to 13,208.86, 18,227.46 and 7,903.63

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Solution

The fourth proportional to 13,208.86, 18,227.46 and 7,903.63 is: 10,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.86 : 18,227.46 = 7,903.63 : x
  2. Step 2: Convert to fraction form
    13,208.86/18,227.46 = 7,903.63/x
  3. Step 3: Cross multiply
    13,208.86x = 18,227.46 × 7,903.63
  4. Step 4: Simplify right side
    13,208.86x = 144,063,099.68
  5. Step 5: Solve for x
    x = 144,063,099.68/13,208.86
  6. Step 6: Final answer
    x = 10,906.55

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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.