Home / 12,609.70-18,915.44-3,724.92

Finding the Fourth Proportional to 12,609.70, 18,915.44 and 3,724.92

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Solution

The fourth proportional to 12,609.70, 18,915.44 and 3,724.92 is: 5,587.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.70 : 18,915.44 = 3,724.92 : x
  2. Step 2: Convert to fraction form
    12,609.70/18,915.44 = 3,724.92/x
  3. Step 3: Cross multiply
    12,609.70x = 18,915.44 × 3,724.92
  4. Step 4: Simplify right side
    12,609.70x = 70,458,482.14
  5. Step 5: Solve for x
    x = 70,458,482.14/12,609.70
  6. Step 6: Final answer
    x = 5,587.64

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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.