Home / 13,238.16-18,268.80-7,269.96

Finding the Fourth Proportional to 13,238.16, 18,268.80 and 7,269.96

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Solution

The fourth proportional to 13,238.16, 18,268.80 and 7,269.96 is: 10,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.16 : 18,268.80 = 7,269.96 : x
  2. Step 2: Convert to fraction form
    13,238.16/18,268.80 = 7,269.96/x
  3. Step 3: Cross multiply
    13,238.16x = 18,268.80 × 7,269.96
  4. Step 4: Simplify right side
    13,238.16x = 132,813,435.11
  5. Step 5: Solve for x
    x = 132,813,435.11/13,238.16
  6. Step 6: Final answer
    x = 10,032.62

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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.