Home / 7,746.45-11,618.44-6,438.60

Finding the Fourth Proportional to 7,746.45, 11,618.44 and 6,438.60

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Solution

The fourth proportional to 7,746.45, 11,618.44 and 6,438.60 is: 9,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,746.45 : 11,618.44 = 6,438.60 : x
  2. Step 2: Convert to fraction form
    7,746.45/11,618.44 = 6,438.60/x
  3. Step 3: Cross multiply
    7,746.45x = 11,618.44 × 6,438.60
  4. Step 4: Simplify right side
    7,746.45x = 74,806,487.78
  5. Step 5: Solve for x
    x = 74,806,487.78/7,746.45
  6. Step 6: Final answer
    x = 9,656.87

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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.