Home / 13,693.46-18,908.51-9,231.98

Finding the Fourth Proportional to 13,693.46, 18,908.51 and 9,231.98

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Solution

The fourth proportional to 13,693.46, 18,908.51 and 9,231.98 is: 12,747.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.46 : 18,908.51 = 9,231.98 : x
  2. Step 2: Convert to fraction form
    13,693.46/18,908.51 = 9,231.98/x
  3. Step 3: Cross multiply
    13,693.46x = 18,908.51 × 9,231.98
  4. Step 4: Simplify right side
    13,693.46x = 174,562,845.45
  5. Step 5: Solve for x
    x = 174,562,845.45/13,693.46
  6. Step 6: Final answer
    x = 12,747.90

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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.