Home / 9,219.30-13,831.14-2,645.34

Finding the Fourth Proportional to 9,219.30, 13,831.14 and 2,645.34

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Solution

The fourth proportional to 9,219.30, 13,831.14 and 2,645.34 is: 3,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.30 : 13,831.14 = 2,645.34 : x
  2. Step 2: Convert to fraction form
    9,219.30/13,831.14 = 2,645.34/x
  3. Step 3: Cross multiply
    9,219.30x = 13,831.14 × 2,645.34
  4. Step 4: Simplify right side
    9,219.30x = 36,588,067.89
  5. Step 5: Solve for x
    x = 36,588,067.89/9,219.30
  6. Step 6: Final answer
    x = 3,968.64

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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.