Home / 12,075.60-16,664.40-6,770.64

Finding the Fourth Proportional to 12,075.60, 16,664.40 and 6,770.64

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Solution

The fourth proportional to 12,075.60, 16,664.40 and 6,770.64 is: 9,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.60 : 16,664.40 = 6,770.64 : x
  2. Step 2: Convert to fraction form
    12,075.60/16,664.40 = 6,770.64/x
  3. Step 3: Cross multiply
    12,075.60x = 16,664.40 × 6,770.64
  4. Step 4: Simplify right side
    12,075.60x = 112,828,653.22
  5. Step 5: Solve for x
    x = 112,828,653.22/12,075.60
  6. Step 6: Final answer
    x = 9,343.52

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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.