Home / 10,419.32-15,629.09-2,628.13

Finding the Fourth Proportional to 10,419.32, 15,629.09 and 2,628.13

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Solution

The fourth proportional to 10,419.32, 15,629.09 and 2,628.13 is: 3,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.32 : 15,629.09 = 2,628.13 : x
  2. Step 2: Convert to fraction form
    10,419.32/15,629.09 = 2,628.13/x
  3. Step 3: Cross multiply
    10,419.32x = 15,629.09 × 2,628.13
  4. Step 4: Simplify right side
    10,419.32x = 41,075,280.30
  5. Step 5: Solve for x
    x = 41,075,280.30/10,419.32
  6. Step 6: Final answer
    x = 3,942.22

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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.