Home / 13,584.94-18,751.80-8,557.58

Finding the Fourth Proportional to 13,584.94, 18,751.80 and 8,557.58

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Solution

The fourth proportional to 13,584.94, 18,751.80 and 8,557.58 is: 11,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.94 : 18,751.80 = 8,557.58 : x
  2. Step 2: Convert to fraction form
    13,584.94/18,751.80 = 8,557.58/x
  3. Step 3: Cross multiply
    13,584.94x = 18,751.80 × 8,557.58
  4. Step 4: Simplify right side
    13,584.94x = 160,470,028.64
  5. Step 5: Solve for x
    x = 160,470,028.64/13,584.94
  6. Step 6: Final answer
    x = 11,812.35

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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.