Home / 13,370.32-20,075.19-7,458.75

Finding the Fourth Proportional to 13,370.32, 20,075.19 and 7,458.75

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Solution

The fourth proportional to 13,370.32, 20,075.19 and 7,458.75 is: 11,199.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.32 : 20,075.19 = 7,458.75 : x
  2. Step 2: Convert to fraction form
    13,370.32/20,075.19 = 7,458.75/x
  3. Step 3: Cross multiply
    13,370.32x = 20,075.19 × 7,458.75
  4. Step 4: Simplify right side
    13,370.32x = 149,735,786.12
  5. Step 5: Solve for x
    x = 149,735,786.12/13,370.32
  6. Step 6: Final answer
    x = 11,199.12

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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.