Home / 12,808.98-19,208.88-4,486.86

Finding the Fourth Proportional to 12,808.98, 19,208.88 and 4,486.86

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Solution

The fourth proportional to 12,808.98, 19,208.88 and 4,486.86 is: 6,728.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.98 : 19,208.88 = 4,486.86 : x
  2. Step 2: Convert to fraction form
    12,808.98/19,208.88 = 4,486.86/x
  3. Step 3: Cross multiply
    12,808.98x = 19,208.88 × 4,486.86
  4. Step 4: Simplify right side
    12,808.98x = 86,187,555.32
  5. Step 5: Solve for x
    x = 86,187,555.32/12,808.98
  6. Step 6: Final answer
    x = 6,728.68

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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.