Home / 9,985.80-14,982.30-4,144.20

Finding the Fourth Proportional to 9,985.80, 14,982.30 and 4,144.20

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Solution

The fourth proportional to 9,985.80, 14,982.30 and 4,144.20 is: 6,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.80 : 14,982.30 = 4,144.20 : x
  2. Step 2: Convert to fraction form
    9,985.80/14,982.30 = 4,144.20/x
  3. Step 3: Cross multiply
    9,985.80x = 14,982.30 × 4,144.20
  4. Step 4: Simplify right side
    9,985.80x = 62,089,647.66
  5. Step 5: Solve for x
    x = 62,089,647.66/9,985.80
  6. Step 6: Final answer
    x = 6,217.79

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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.