Home / 14,364.22-19,822.26-7,990.80

Finding the Fourth Proportional to 14,364.22, 19,822.26 and 7,990.80

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Solution

The fourth proportional to 14,364.22, 19,822.26 and 7,990.80 is: 11,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,364.22 : 19,822.26 = 7,990.80 : x
  2. Step 2: Convert to fraction form
    14,364.22/19,822.26 = 7,990.80/x
  3. Step 3: Cross multiply
    14,364.22x = 19,822.26 × 7,990.80
  4. Step 4: Simplify right side
    14,364.22x = 158,395,715.21
  5. Step 5: Solve for x
    x = 158,395,715.21/14,364.22
  6. Step 6: Final answer
    x = 11,027.10

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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.