Home / 13,604.01-18,775.26-7,637.60

Finding the Fourth Proportional to 13,604.01, 18,775.26 and 7,637.60

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Solution

The fourth proportional to 13,604.01, 18,775.26 and 7,637.60 is: 10,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.01 : 18,775.26 = 7,637.60 : x
  2. Step 2: Convert to fraction form
    13,604.01/18,775.26 = 7,637.60/x
  3. Step 3: Cross multiply
    13,604.01x = 18,775.26 × 7,637.60
  4. Step 4: Simplify right side
    13,604.01x = 143,397,831.90
  5. Step 5: Solve for x
    x = 143,397,831.90/13,604.01
  6. Step 6: Final answer
    x = 10,540.85

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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.