Home / 9,065.93-12,520.49-6,240.60

Finding the Fourth Proportional to 9,065.93, 12,520.49 and 6,240.60

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Solution

The fourth proportional to 9,065.93, 12,520.49 and 6,240.60 is: 8,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,065.93 : 12,520.49 = 6,240.60 : x
  2. Step 2: Convert to fraction form
    9,065.93/12,520.49 = 6,240.60/x
  3. Step 3: Cross multiply
    9,065.93x = 12,520.49 × 6,240.60
  4. Step 4: Simplify right side
    9,065.93x = 78,135,369.89
  5. Step 5: Solve for x
    x = 78,135,369.89/9,065.93
  6. Step 6: Final answer
    x = 8,618.57

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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.