Home / 11,007.21-15,189.63-6,291.48

Finding the Fourth Proportional to 11,007.21, 15,189.63 and 6,291.48

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Solution

The fourth proportional to 11,007.21, 15,189.63 and 6,291.48 is: 8,682.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.21 : 15,189.63 = 6,291.48 : x
  2. Step 2: Convert to fraction form
    11,007.21/15,189.63 = 6,291.48/x
  3. Step 3: Cross multiply
    11,007.21x = 15,189.63 × 6,291.48
  4. Step 4: Simplify right side
    11,007.21x = 95,565,253.35
  5. Step 5: Solve for x
    x = 95,565,253.35/11,007.21
  6. Step 6: Final answer
    x = 8,682.06

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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.