Home / 12,447.75-18,670.60-4,125.05

Finding the Fourth Proportional to 12,447.75, 18,670.60 and 4,125.05

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Solution

The fourth proportional to 12,447.75, 18,670.60 and 4,125.05 is: 6,187.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.75 : 18,670.60 = 4,125.05 : x
  2. Step 2: Convert to fraction form
    12,447.75/18,670.60 = 4,125.05/x
  3. Step 3: Cross multiply
    12,447.75x = 18,670.60 × 4,125.05
  4. Step 4: Simplify right side
    12,447.75x = 77,017,158.53
  5. Step 5: Solve for x
    x = 77,017,158.53/12,447.75
  6. Step 6: Final answer
    x = 6,187.24

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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.