Home / 12,235.02-18,343.54-3,910.23

Finding the Fourth Proportional to 12,235.02, 18,343.54 and 3,910.23

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Solution

The fourth proportional to 12,235.02, 18,343.54 and 3,910.23 is: 5,862.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.02 : 18,343.54 = 3,910.23 : x
  2. Step 2: Convert to fraction form
    12,235.02/18,343.54 = 3,910.23/x
  3. Step 3: Cross multiply
    12,235.02x = 18,343.54 × 3,910.23
  4. Step 4: Simplify right side
    12,235.02x = 71,727,460.41
  5. Step 5: Solve for x
    x = 71,727,460.41/12,235.02
  6. Step 6: Final answer
    x = 5,862.47

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Double scale
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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.