Home / 12,858.41-19,272.20-6,621.36

Finding the Fourth Proportional to 12,858.41, 19,272.20 and 6,621.36

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Solution

The fourth proportional to 12,858.41, 19,272.20 and 6,621.36 is: 9,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.41 : 19,272.20 = 6,621.36 : x
  2. Step 2: Convert to fraction form
    12,858.41/19,272.20 = 6,621.36/x
  3. Step 3: Cross multiply
    12,858.41x = 19,272.20 × 6,621.36
  4. Step 4: Simplify right side
    12,858.41x = 127,608,141.09
  5. Step 5: Solve for x
    x = 127,608,141.09/12,858.41
  6. Step 6: Final answer
    x = 9,924.10

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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.