Home / 12,975.54-19,485.34-8,480.04

Finding the Fourth Proportional to 12,975.54, 19,485.34 and 8,480.04

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Solution

The fourth proportional to 12,975.54, 19,485.34 and 8,480.04 is: 12,734.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.54 : 19,485.34 = 8,480.04 : x
  2. Step 2: Convert to fraction form
    12,975.54/19,485.34 = 8,480.04/x
  3. Step 3: Cross multiply
    12,975.54x = 19,485.34 × 8,480.04
  4. Step 4: Simplify right side
    12,975.54x = 165,236,462.61
  5. Step 5: Solve for x
    x = 165,236,462.61/12,975.54
  6. Step 6: Final answer
    x = 12,734.46

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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.