Home / 12,124.49-18,176.40-6,858.68

Finding the Fourth Proportional to 12,124.49, 18,176.40 and 6,858.68

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Solution

The fourth proportional to 12,124.49, 18,176.40 and 6,858.68 is: 10,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.49 : 18,176.40 = 6,858.68 : x
  2. Step 2: Convert to fraction form
    12,124.49/18,176.40 = 6,858.68/x
  3. Step 3: Cross multiply
    12,124.49x = 18,176.40 × 6,858.68
  4. Step 4: Simplify right side
    12,124.49x = 124,666,020.27
  5. Step 5: Solve for x
    x = 124,666,020.27/12,124.49
  6. Step 6: Final answer
    x = 10,282.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.