Home / 19,815.12-29,726.57-7,335.25

Finding the Fourth Proportional to 19,815.12, 29,726.57 and 7,335.25

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Solution

The fourth proportional to 19,815.12, 29,726.57 and 7,335.25 is: 11,004.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.12 : 29,726.57 = 7,335.25 : x
  2. Step 2: Convert to fraction form
    19,815.12/29,726.57 = 7,335.25/x
  3. Step 3: Cross multiply
    19,815.12x = 29,726.57 × 7,335.25
  4. Step 4: Simplify right side
    19,815.12x = 218,051,766.61
  5. Step 5: Solve for x
    x = 218,051,766.61/19,815.12
  6. Step 6: Final answer
    x = 11,004.31

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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.