Home / 13,578.37-18,739.06-7,610.44

Finding the Fourth Proportional to 13,578.37, 18,739.06 and 7,610.44

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Solution

The fourth proportional to 13,578.37, 18,739.06 and 7,610.44 is: 10,502.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.37 : 18,739.06 = 7,610.44 : x
  2. Step 2: Convert to fraction form
    13,578.37/18,739.06 = 7,610.44/x
  3. Step 3: Cross multiply
    13,578.37x = 18,739.06 × 7,610.44
  4. Step 4: Simplify right side
    13,578.37x = 142,612,491.79
  5. Step 5: Solve for x
    x = 142,612,491.79/13,578.37
  6. Step 6: Final answer
    x = 10,502.92

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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.