Home / 7,709.36-10,629.23-6,291.59

Finding the Fourth Proportional to 7,709.36, 10,629.23 and 6,291.59

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Solution

The fourth proportional to 7,709.36, 10,629.23 and 6,291.59 is: 8,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.36 : 10,629.23 = 6,291.59 : x
  2. Step 2: Convert to fraction form
    7,709.36/10,629.23 = 6,291.59/x
  3. Step 3: Cross multiply
    7,709.36x = 10,629.23 × 6,291.59
  4. Step 4: Simplify right side
    7,709.36x = 66,874,672.57
  5. Step 5: Solve for x
    x = 66,874,672.57/7,709.36
  6. Step 6: Final answer
    x = 8,674.48

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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.