Home / 10,428.12-15,638.94-3,501

Finding the Fourth Proportional to 10,428.12, 15,638.94 and 3,501

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Solution

The fourth proportional to 10,428.12, 15,638.94 and 3,501 is: 5,250.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.12 : 15,638.94 = 3,501 : x
  2. Step 2: Convert to fraction form
    10,428.12/15,638.94 = 3,501/x
  3. Step 3: Cross multiply
    10,428.12x = 15,638.94 × 3,501
  4. Step 4: Simplify right side
    10,428.12x = 54,751,928.94
  5. Step 5: Solve for x
    x = 54,751,928.94/10,428.12
  6. Step 6: Final answer
    x = 5,250.41

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Why These Related Problems?

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