Home / 11,291.40-16,941.56-8,175.32

Finding the Fourth Proportional to 11,291.40, 16,941.56 and 8,175.32

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Solution

The fourth proportional to 11,291.40, 16,941.56 and 8,175.32 is: 12,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.40 : 16,941.56 = 8,175.32 : x
  2. Step 2: Convert to fraction form
    11,291.40/16,941.56 = 8,175.32/x
  3. Step 3: Cross multiply
    11,291.40x = 16,941.56 × 8,175.32
  4. Step 4: Simplify right side
    11,291.40x = 138,502,674.30
  5. Step 5: Solve for x
    x = 138,502,674.30/11,291.40
  6. Step 6: Final answer
    x = 12,266.21

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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.