Home / 14,085.90-21,092.40-11,145.60

Finding the Fourth Proportional to 14,085.90, 21,092.40 and 11,145.60

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Solution

The fourth proportional to 14,085.90, 21,092.40 and 11,145.60 is: 16,689.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.90 : 21,092.40 = 11,145.60 : x
  2. Step 2: Convert to fraction form
    14,085.90/21,092.40 = 11,145.60/x
  3. Step 3: Cross multiply
    14,085.90x = 21,092.40 × 11,145.60
  4. Step 4: Simplify right side
    14,085.90x = 235,087,453.44
  5. Step 5: Solve for x
    x = 235,087,453.44/14,085.90
  6. Step 6: Final answer
    x = 16,689.56

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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.