Home / 13,930.02-19,212.21-12,247.86

Finding the Fourth Proportional to 13,930.02, 19,212.21 and 12,247.86

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Solution

The fourth proportional to 13,930.02, 19,212.21 and 12,247.86 is: 16,892.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.02 : 19,212.21 = 12,247.86 : x
  2. Step 2: Convert to fraction form
    13,930.02/19,212.21 = 12,247.86/x
  3. Step 3: Cross multiply
    13,930.02x = 19,212.21 × 12,247.86
  4. Step 4: Simplify right side
    13,930.02x = 235,308,458.37
  5. Step 5: Solve for x
    x = 235,308,458.37/13,930.02
  6. Step 6: Final answer
    x = 16,892.18

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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.