Home / 12,075.24-18,110.79-3,190.67

Finding the Fourth Proportional to 12,075.24, 18,110.79 and 3,190.67

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Solution

The fourth proportional to 12,075.24, 18,110.79 and 3,190.67 is: 4,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.24 : 18,110.79 = 3,190.67 : x
  2. Step 2: Convert to fraction form
    12,075.24/18,110.79 = 3,190.67/x
  3. Step 3: Cross multiply
    12,075.24x = 18,110.79 × 3,190.67
  4. Step 4: Simplify right side
    12,075.24x = 57,785,531.69
  5. Step 5: Solve for x
    x = 57,785,531.69/12,075.24
  6. Step 6: Final answer
    x = 4,785.45

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1.5x scale

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.