Home / 12,075.84-16,664.10-6,698.40

Finding the Fourth Proportional to 12,075.84, 16,664.10 and 6,698.40

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Solution

The fourth proportional to 12,075.84, 16,664.10 and 6,698.40 is: 9,243.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.84 : 16,664.10 = 6,698.40 : x
  2. Step 2: Convert to fraction form
    12,075.84/16,664.10 = 6,698.40/x
  3. Step 3: Cross multiply
    12,075.84x = 16,664.10 × 6,698.40
  4. Step 4: Simplify right side
    12,075.84x = 111,622,807.44
  5. Step 5: Solve for x
    x = 111,622,807.44/12,075.84
  6. Step 6: Final answer
    x = 9,243.48

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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.