Home / 12,339.36-18,503.10-3,571.92

Finding the Fourth Proportional to 12,339.36, 18,503.10 and 3,571.92

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Solution

The fourth proportional to 12,339.36, 18,503.10 and 3,571.92 is: 5,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.36 : 18,503.10 = 3,571.92 : x
  2. Step 2: Convert to fraction form
    12,339.36/18,503.10 = 3,571.92/x
  3. Step 3: Cross multiply
    12,339.36x = 18,503.10 × 3,571.92
  4. Step 4: Simplify right side
    12,339.36x = 66,091,592.95
  5. Step 5: Solve for x
    x = 66,091,592.95/12,339.36
  6. Step 6: Final answer
    x = 5,356.16

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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.