Home / 12,975.99-19,466.55-4,653.78

Finding the Fourth Proportional to 12,975.99, 19,466.55 and 4,653.78

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Solution

The fourth proportional to 12,975.99, 19,466.55 and 4,653.78 is: 6,981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.99 : 19,466.55 = 4,653.78 : x
  2. Step 2: Convert to fraction form
    12,975.99/19,466.55 = 4,653.78/x
  3. Step 3: Cross multiply
    12,975.99x = 19,466.55 × 4,653.78
  4. Step 4: Simplify right side
    12,975.99x = 90,593,041.06
  5. Step 5: Solve for x
    x = 90,593,041.06/12,975.99
  6. Step 6: Final answer
    x = 6,981.59

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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.