Home / 12,075.16-16,664.42-6,771.68

Finding the Fourth Proportional to 12,075.16, 16,664.42 and 6,771.68

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Solution

The fourth proportional to 12,075.16, 16,664.42 and 6,771.68 is: 9,345.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.16 : 16,664.42 = 6,771.68 : x
  2. Step 2: Convert to fraction form
    12,075.16/16,664.42 = 6,771.68/x
  3. Step 3: Cross multiply
    12,075.16x = 16,664.42 × 6,771.68
  4. Step 4: Simplify right side
    12,075.16x = 112,846,119.63
  5. Step 5: Solve for x
    x = 112,846,119.63/12,075.16
  6. Step 6: Final answer
    x = 9,345.31

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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.