Home / 12,439.60-18,661.23-3,673.37

Finding the Fourth Proportional to 12,439.60, 18,661.23 and 3,673.37

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Solution

The fourth proportional to 12,439.60, 18,661.23 and 3,673.37 is: 5,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.60 : 18,661.23 = 3,673.37 : x
  2. Step 2: Convert to fraction form
    12,439.60/18,661.23 = 3,673.37/x
  3. Step 3: Cross multiply
    12,439.60x = 18,661.23 × 3,673.37
  4. Step 4: Simplify right side
    12,439.60x = 68,549,649.10
  5. Step 5: Solve for x
    x = 68,549,649.10/12,439.60
  6. Step 6: Final answer
    x = 5,510.60

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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.