Home / 13,609.37-20,426.37-7,040.18

Finding the Fourth Proportional to 13,609.37, 20,426.37 and 7,040.18

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Solution

The fourth proportional to 13,609.37, 20,426.37 and 7,040.18 is: 10,566.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.37 : 20,426.37 = 7,040.18 : x
  2. Step 2: Convert to fraction form
    13,609.37/20,426.37 = 7,040.18/x
  3. Step 3: Cross multiply
    13,609.37x = 20,426.37 × 7,040.18
  4. Step 4: Simplify right side
    13,609.37x = 143,805,321.55
  5. Step 5: Solve for x
    x = 143,805,321.55/13,609.37
  6. Step 6: Final answer
    x = 10,566.64

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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.