Home / 12,812.48-19,193.86-8,416.60

Finding the Fourth Proportional to 12,812.48, 19,193.86 and 8,416.60

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Solution

The fourth proportional to 12,812.48, 19,193.86 and 8,416.60 is: 12,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812.48 : 19,193.86 = 8,416.60 : x
  2. Step 2: Convert to fraction form
    12,812.48/19,193.86 = 8,416.60/x
  3. Step 3: Cross multiply
    12,812.48x = 19,193.86 × 8,416.60
  4. Step 4: Simplify right side
    12,812.48x = 161,547,042.08
  5. Step 5: Solve for x
    x = 161,547,042.08/12,812.48
  6. Step 6: Final answer
    x = 12,608.57

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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.