Home / 7,899.96-10,893.78-6,784.60

Finding the Fourth Proportional to 7,899.96, 10,893.78 and 6,784.60

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Solution

The fourth proportional to 7,899.96, 10,893.78 and 6,784.60 is: 9,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.96 : 10,893.78 = 6,784.60 : x
  2. Step 2: Convert to fraction form
    7,899.96/10,893.78 = 6,784.60/x
  3. Step 3: Cross multiply
    7,899.96x = 10,893.78 × 6,784.60
  4. Step 4: Simplify right side
    7,899.96x = 73,909,939.79
  5. Step 5: Solve for x
    x = 73,909,939.79/7,899.96
  6. Step 6: Final answer
    x = 9,355.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.