Home / 12,486.06-18,722.62-4,586.55

Finding the Fourth Proportional to 12,486.06, 18,722.62 and 4,586.55

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Solution

The fourth proportional to 12,486.06, 18,722.62 and 4,586.55 is: 6,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.06 : 18,722.62 = 4,586.55 : x
  2. Step 2: Convert to fraction form
    12,486.06/18,722.62 = 4,586.55/x
  3. Step 3: Cross multiply
    12,486.06x = 18,722.62 × 4,586.55
  4. Step 4: Simplify right side
    12,486.06x = 85,872,168.28
  5. Step 5: Solve for x
    x = 85,872,168.28/12,486.06
  6. Step 6: Final answer
    x = 6,877.44

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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.