Home / 12,176.25-18,264.89-4,782.32

Finding the Fourth Proportional to 12,176.25, 18,264.89 and 4,782.32

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Solution

The fourth proportional to 12,176.25, 18,264.89 and 4,782.32 is: 7,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.25 : 18,264.89 = 4,782.32 : x
  2. Step 2: Convert to fraction form
    12,176.25/18,264.89 = 4,782.32/x
  3. Step 3: Cross multiply
    12,176.25x = 18,264.89 × 4,782.32
  4. Step 4: Simplify right side
    12,176.25x = 87,348,469.38
  5. Step 5: Solve for x
    x = 87,348,469.38/12,176.25
  6. Step 6: Final answer
    x = 7,173.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.