Home / 14,121.12-19,486.80-7,833.60

Finding the Fourth Proportional to 14,121.12, 19,486.80 and 7,833.60

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Solution

The fourth proportional to 14,121.12, 19,486.80 and 7,833.60 is: 10,810.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.12 : 19,486.80 = 7,833.60 : x
  2. Step 2: Convert to fraction form
    14,121.12/19,486.80 = 7,833.60/x
  3. Step 3: Cross multiply
    14,121.12x = 19,486.80 × 7,833.60
  4. Step 4: Simplify right side
    14,121.12x = 152,651,796.48
  5. Step 5: Solve for x
    x = 152,651,796.48/14,121.12
  6. Step 6: Final answer
    x = 10,810.18

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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.