Home / 10,515.47-14,511.14-5,735.45

Finding the Fourth Proportional to 10,515.47, 14,511.14 and 5,735.45

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Solution

The fourth proportional to 10,515.47, 14,511.14 and 5,735.45 is: 7,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.47 : 14,511.14 = 5,735.45 : x
  2. Step 2: Convert to fraction form
    10,515.47/14,511.14 = 5,735.45/x
  3. Step 3: Cross multiply
    10,515.47x = 14,511.14 × 5,735.45
  4. Step 4: Simplify right side
    10,515.47x = 83,227,816.68
  5. Step 5: Solve for x
    x = 83,227,816.68/10,515.47
  6. Step 6: Final answer
    x = 7,914.80

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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.