Home / 13,440.02-18,544.19-8,133.71

Finding the Fourth Proportional to 13,440.02, 18,544.19 and 8,133.71

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Solution

The fourth proportional to 13,440.02, 18,544.19 and 8,133.71 is: 11,222.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.02 : 18,544.19 = 8,133.71 : x
  2. Step 2: Convert to fraction form
    13,440.02/18,544.19 = 8,133.71/x
  3. Step 3: Cross multiply
    13,440.02x = 18,544.19 × 8,133.71
  4. Step 4: Simplify right side
    13,440.02x = 150,832,930.26
  5. Step 5: Solve for x
    x = 150,832,930.26/13,440.02
  6. Step 6: Final answer
    x = 11,222.68

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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.