Home / 13,075.10-19,683.80-11,912.57

Finding the Fourth Proportional to 13,075.10, 19,683.80 and 11,912.57

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Solution

The fourth proportional to 13,075.10, 19,683.80 and 11,912.57 is: 17,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.10 : 19,683.80 = 11,912.57 : x
  2. Step 2: Convert to fraction form
    13,075.10/19,683.80 = 11,912.57/x
  3. Step 3: Cross multiply
    13,075.10x = 19,683.80 × 11,912.57
  4. Step 4: Simplify right side
    13,075.10x = 234,484,716.59
  5. Step 5: Solve for x
    x = 234,484,716.59/13,075.10
  6. Step 6: Final answer
    x = 17,933.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.