Home / 14,172.81-19,558.49-7,885.19

Finding the Fourth Proportional to 14,172.81, 19,558.49 and 7,885.19

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Solution

The fourth proportional to 14,172.81, 19,558.49 and 7,885.19 is: 10,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,172.81 : 19,558.49 = 7,885.19 : x
  2. Step 2: Convert to fraction form
    14,172.81/19,558.49 = 7,885.19/x
  3. Step 3: Cross multiply
    14,172.81x = 19,558.49 × 7,885.19
  4. Step 4: Simplify right side
    14,172.81x = 154,222,370.34
  5. Step 5: Solve for x
    x = 154,222,370.34/14,172.81
  6. Step 6: Final answer
    x = 10,881.57

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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.