Home / 13,182.74-18,197.43-8,647.15

Finding the Fourth Proportional to 13,182.74, 18,197.43 and 8,647.15

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Solution

The fourth proportional to 13,182.74, 18,197.43 and 8,647.15 is: 11,936.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.74 : 18,197.43 = 8,647.15 : x
  2. Step 2: Convert to fraction form
    13,182.74/18,197.43 = 8,647.15/x
  3. Step 3: Cross multiply
    13,182.74x = 18,197.43 × 8,647.15
  4. Step 4: Simplify right side
    13,182.74x = 157,355,815.84
  5. Step 5: Solve for x
    x = 157,355,815.84/13,182.74
  6. Step 6: Final answer
    x = 11,936.50

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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.