Home / 13,672.07-18,867.45-7,384.44

Finding the Fourth Proportional to 13,672.07, 18,867.45 and 7,384.44

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Solution

The fourth proportional to 13,672.07, 18,867.45 and 7,384.44 is: 10,190.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.07 : 18,867.45 = 7,384.44 : x
  2. Step 2: Convert to fraction form
    13,672.07/18,867.45 = 7,384.44/x
  3. Step 3: Cross multiply
    13,672.07x = 18,867.45 × 7,384.44
  4. Step 4: Simplify right side
    13,672.07x = 139,325,552.48
  5. Step 5: Solve for x
    x = 139,325,552.48/13,672.07
  6. Step 6: Final answer
    x = 10,190.53

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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.