Home / 6,969.72-9,615.60-4,136.52

Finding the Fourth Proportional to 6,969.72, 9,615.60 and 4,136.52

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Solution

The fourth proportional to 6,969.72, 9,615.60 and 4,136.52 is: 5,706.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,969.72 : 9,615.60 = 4,136.52 : x
  2. Step 2: Convert to fraction form
    6,969.72/9,615.60 = 4,136.52/x
  3. Step 3: Cross multiply
    6,969.72x = 9,615.60 × 4,136.52
  4. Step 4: Simplify right side
    6,969.72x = 39,775,121.71
  5. Step 5: Solve for x
    x = 39,775,121.71/6,969.72
  6. Step 6: Final answer
    x = 5,706.85

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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.