Home / 13,690.44-20,498.52-7,102.80

Finding the Fourth Proportional to 13,690.44, 20,498.52 and 7,102.80

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Solution

The fourth proportional to 13,690.44, 20,498.52 and 7,102.80 is: 10,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.44 : 20,498.52 = 7,102.80 : x
  2. Step 2: Convert to fraction form
    13,690.44/20,498.52 = 7,102.80/x
  3. Step 3: Cross multiply
    13,690.44x = 20,498.52 × 7,102.80
  4. Step 4: Simplify right side
    13,690.44x = 145,596,887.86
  5. Step 5: Solve for x
    x = 145,596,887.86/13,690.44
  6. Step 6: Final answer
    x = 10,634.93

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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.