Home / 12,786.28-19,182.02-4,888.24

Finding the Fourth Proportional to 12,786.28, 19,182.02 and 4,888.24

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Solution

The fourth proportional to 12,786.28, 19,182.02 and 4,888.24 is: 7,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786.28 : 19,182.02 = 4,888.24 : x
  2. Step 2: Convert to fraction form
    12,786.28/19,182.02 = 4,888.24/x
  3. Step 3: Cross multiply
    12,786.28x = 19,182.02 × 4,888.24
  4. Step 4: Simplify right side
    12,786.28x = 93,766,317.44
  5. Step 5: Solve for x
    x = 93,766,317.44/12,786.28
  6. Step 6: Final answer
    x = 7,333.35

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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.