Home / 13,663.98-20,497.16-4,178.44

Finding the Fourth Proportional to 13,663.98, 20,497.16 and 4,178.44

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Solution

The fourth proportional to 13,663.98, 20,497.16 and 4,178.44 is: 6,268.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.98 : 20,497.16 = 4,178.44 : x
  2. Step 2: Convert to fraction form
    13,663.98/20,497.16 = 4,178.44/x
  3. Step 3: Cross multiply
    13,663.98x = 20,497.16 × 4,178.44
  4. Step 4: Simplify right side
    13,663.98x = 85,646,050.74
  5. Step 5: Solve for x
    x = 85,646,050.74/13,663.98
  6. Step 6: Final answer
    x = 6,268.02

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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.