Home / 10,075.68-15,110.40-3,831.12

Finding the Fourth Proportional to 10,075.68, 15,110.40 and 3,831.12

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Solution

The fourth proportional to 10,075.68, 15,110.40 and 3,831.12 is: 5,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,075.68 : 15,110.40 = 3,831.12 : x
  2. Step 2: Convert to fraction form
    10,075.68/15,110.40 = 3,831.12/x
  3. Step 3: Cross multiply
    10,075.68x = 15,110.40 × 3,831.12
  4. Step 4: Simplify right side
    10,075.68x = 57,889,755.65
  5. Step 5: Solve for x
    x = 57,889,755.65/10,075.68
  6. Step 6: Final answer
    x = 5,745.49

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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.