Home / 8,749.94-12,075.20-5,212.66

Finding the Fourth Proportional to 8,749.94, 12,075.20 and 5,212.66

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Solution

The fourth proportional to 8,749.94, 12,075.20 and 5,212.66 is: 7,193.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.94 : 12,075.20 = 5,212.66 : x
  2. Step 2: Convert to fraction form
    8,749.94/12,075.20 = 5,212.66/x
  3. Step 3: Cross multiply
    8,749.94x = 12,075.20 × 5,212.66
  4. Step 4: Simplify right side
    8,749.94x = 62,943,912.03
  5. Step 5: Solve for x
    x = 62,943,912.03/8,749.94
  6. Step 6: Final answer
    x = 7,193.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.