Home / 7,961.98-11,925.39-4,990.74

Finding the Fourth Proportional to 7,961.98, 11,925.39 and 4,990.74

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Solution

The fourth proportional to 7,961.98, 11,925.39 and 4,990.74 is: 7,475.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.98 : 11,925.39 = 4,990.74 : x
  2. Step 2: Convert to fraction form
    7,961.98/11,925.39 = 4,990.74/x
  3. Step 3: Cross multiply
    7,961.98x = 11,925.39 × 4,990.74
  4. Step 4: Simplify right side
    7,961.98x = 59,516,520.89
  5. Step 5: Solve for x
    x = 59,516,520.89/7,961.98
  6. Step 6: Final answer
    x = 7,475.09

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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.