Home / 12,975.25-19,467.47-6,406.05

Finding the Fourth Proportional to 12,975.25, 19,467.47 and 6,406.05

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Solution

The fourth proportional to 12,975.25, 19,467.47 and 6,406.05 is: 9,611.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.25 : 19,467.47 = 6,406.05 : x
  2. Step 2: Convert to fraction form
    12,975.25/19,467.47 = 6,406.05/x
  3. Step 3: Cross multiply
    12,975.25x = 19,467.47 × 6,406.05
  4. Step 4: Simplify right side
    12,975.25x = 124,709,586.19
  5. Step 5: Solve for x
    x = 124,709,586.19/12,975.25
  6. Step 6: Final answer
    x = 9,611.34

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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.