Home / 13,557.35-18,716.62-9,104.75

Finding the Fourth Proportional to 13,557.35, 18,716.62 and 9,104.75

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Solution

The fourth proportional to 13,557.35, 18,716.62 and 9,104.75 is: 12,569.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.35 : 18,716.62 = 9,104.75 : x
  2. Step 2: Convert to fraction form
    13,557.35/18,716.62 = 9,104.75/x
  3. Step 3: Cross multiply
    13,557.35x = 18,716.62 × 9,104.75
  4. Step 4: Simplify right side
    13,557.35x = 170,410,222.14
  5. Step 5: Solve for x
    x = 170,410,222.14/13,557.35
  6. Step 6: Final answer
    x = 12,569.58

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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.