Home / 7,662.50-11,515.37-4,543.05

Finding the Fourth Proportional to 7,662.50, 11,515.37 and 4,543.05

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Solution

The fourth proportional to 7,662.50, 11,515.37 and 4,543.05 is: 6,827.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.50 : 11,515.37 = 4,543.05 : x
  2. Step 2: Convert to fraction form
    7,662.50/11,515.37 = 4,543.05/x
  3. Step 3: Cross multiply
    7,662.50x = 11,515.37 × 4,543.05
  4. Step 4: Simplify right side
    7,662.50x = 52,314,878.96
  5. Step 5: Solve for x
    x = 52,314,878.96/7,662.50
  6. Step 6: Final answer
    x = 6,827.39

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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.