Home / 13,370.75-20,075.83-7,459.18

Finding the Fourth Proportional to 13,370.75, 20,075.83 and 7,459.18

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Solution

The fourth proportional to 13,370.75, 20,075.83 and 7,459.18 is: 11,199.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.75 : 20,075.83 = 7,459.18 : x
  2. Step 2: Convert to fraction form
    13,370.75/20,075.83 = 7,459.18/x
  3. Step 3: Cross multiply
    13,370.75x = 20,075.83 × 7,459.18
  4. Step 4: Simplify right side
    13,370.75x = 149,749,229.62
  5. Step 5: Solve for x
    x = 149,749,229.62/13,370.75
  6. Step 6: Final answer
    x = 11,199.76

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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.