Home / 13,219.98-19,830.06-4,454.88

Finding the Fourth Proportional to 13,219.98, 19,830.06 and 4,454.88

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Solution

The fourth proportional to 13,219.98, 19,830.06 and 4,454.88 is: 6,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.98 : 19,830.06 = 4,454.88 : x
  2. Step 2: Convert to fraction form
    13,219.98/19,830.06 = 4,454.88/x
  3. Step 3: Cross multiply
    13,219.98x = 19,830.06 × 4,454.88
  4. Step 4: Simplify right side
    13,219.98x = 88,340,537.69
  5. Step 5: Solve for x
    x = 88,340,537.69/13,219.98
  6. Step 6: Final answer
    x = 6,682.35

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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.