Home / 11,131.24-15,361.12-6,415.52

Finding the Fourth Proportional to 11,131.24, 15,361.12 and 6,415.52

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Solution

The fourth proportional to 11,131.24, 15,361.12 and 6,415.52 is: 8,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.24 : 15,361.12 = 6,415.52 : x
  2. Step 2: Convert to fraction form
    11,131.24/15,361.12 = 6,415.52/x
  3. Step 3: Cross multiply
    11,131.24x = 15,361.12 × 6,415.52
  4. Step 4: Simplify right side
    11,131.24x = 98,549,572.58
  5. Step 5: Solve for x
    x = 98,549,572.58/11,131.24
  6. Step 6: Final answer
    x = 8,853.42

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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.