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Finding the Fourth Proportional to 6,779.22, 10,140.75 and 6,364.50

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Solution

The fourth proportional to 6,779.22, 10,140.75 and 6,364.50 is: 9,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.22 : 10,140.75 = 6,364.50 : x
  2. Step 2: Convert to fraction form
    6,779.22/10,140.75 = 6,364.50/x
  3. Step 3: Cross multiply
    6,779.22x = 10,140.75 × 6,364.50
  4. Step 4: Simplify right side
    6,779.22x = 64,540,803.38
  5. Step 5: Solve for x
    x = 64,540,803.38/6,779.22
  6. Step 6: Final answer
    x = 9,520.39

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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.