Home / 13,821.60-19,074.29-7,853.08

Finding the Fourth Proportional to 13,821.60, 19,074.29 and 7,853.08

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Solution

The fourth proportional to 13,821.60, 19,074.29 and 7,853.08 is: 10,837.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.60 : 19,074.29 = 7,853.08 : x
  2. Step 2: Convert to fraction form
    13,821.60/19,074.29 = 7,853.08/x
  3. Step 3: Cross multiply
    13,821.60x = 19,074.29 × 7,853.08
  4. Step 4: Simplify right side
    13,821.60x = 149,791,925.31
  5. Step 5: Solve for x
    x = 149,791,925.31/13,821.60
  6. Step 6: Final answer
    x = 10,837.52

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.