Home / 12,975.35-19,465.76-4,209.58

Finding the Fourth Proportional to 12,975.35, 19,465.76 and 4,209.58

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Solution

The fourth proportional to 12,975.35, 19,465.76 and 4,209.58 is: 6,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.35 : 19,465.76 = 4,209.58 : x
  2. Step 2: Convert to fraction form
    12,975.35/19,465.76 = 4,209.58/x
  3. Step 3: Cross multiply
    12,975.35x = 19,465.76 × 4,209.58
  4. Step 4: Simplify right side
    12,975.35x = 81,942,673.98
  5. Step 5: Solve for x
    x = 81,942,673.98/12,975.35
  6. Step 6: Final answer
    x = 6,315.26

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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.