Home / 13,075.12-19,568.36-7,884.64

Finding the Fourth Proportional to 13,075.12, 19,568.36 and 7,884.64

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Solution

The fourth proportional to 13,075.12, 19,568.36 and 7,884.64 is: 11,800.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.12 : 19,568.36 = 7,884.64 : x
  2. Step 2: Convert to fraction form
    13,075.12/19,568.36 = 7,884.64/x
  3. Step 3: Cross multiply
    13,075.12x = 19,568.36 × 7,884.64
  4. Step 4: Simplify right side
    13,075.12x = 154,289,473.99
  5. Step 5: Solve for x
    x = 154,289,473.99/13,075.12
  6. Step 6: Final answer
    x = 11,800.23

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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.