Home / 7,688.08-11,533.20-3,307.60

Finding the Fourth Proportional to 7,688.08, 11,533.20 and 3,307.60

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Solution

The fourth proportional to 7,688.08, 11,533.20 and 3,307.60 is: 4,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.08 : 11,533.20 = 3,307.60 : x
  2. Step 2: Convert to fraction form
    7,688.08/11,533.20 = 3,307.60/x
  3. Step 3: Cross multiply
    7,688.08x = 11,533.20 × 3,307.60
  4. Step 4: Simplify right side
    7,688.08x = 38,147,212.32
  5. Step 5: Solve for x
    x = 38,147,212.32/7,688.08
  6. Step 6: Final answer
    x = 4,961.86

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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.