Home / 13,237.40-18,265.25-8,759.51

Finding the Fourth Proportional to 13,237.40, 18,265.25 and 8,759.51

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Solution

The fourth proportional to 13,237.40, 18,265.25 and 8,759.51 is: 12,086.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.40 : 18,265.25 = 8,759.51 : x
  2. Step 2: Convert to fraction form
    13,237.40/18,265.25 = 8,759.51/x
  3. Step 3: Cross multiply
    13,237.40x = 18,265.25 × 8,759.51
  4. Step 4: Simplify right side
    13,237.40x = 159,994,504.90
  5. Step 5: Solve for x
    x = 159,994,504.90/13,237.40
  6. Step 6: Final answer
    x = 12,086.56

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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.