Home / 13,634.18-18,808.85-7,969.16

Finding the Fourth Proportional to 13,634.18, 18,808.85 and 7,969.16

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Solution

The fourth proportional to 13,634.18, 18,808.85 and 7,969.16 is: 10,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.18 : 18,808.85 = 7,969.16 : x
  2. Step 2: Convert to fraction form
    13,634.18/18,808.85 = 7,969.16/x
  3. Step 3: Cross multiply
    13,634.18x = 18,808.85 × 7,969.16
  4. Step 4: Simplify right side
    13,634.18x = 149,890,822.34
  5. Step 5: Solve for x
    x = 149,890,822.34/13,634.18
  6. Step 6: Final answer
    x = 10,993.76

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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.