Home / 9,429.90-14,144.40-3,189.30

Finding the Fourth Proportional to 9,429.90, 14,144.40 and 3,189.30

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Solution

The fourth proportional to 9,429.90, 14,144.40 and 3,189.30 is: 4,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.90 : 14,144.40 = 3,189.30 : x
  2. Step 2: Convert to fraction form
    9,429.90/14,144.40 = 3,189.30/x
  3. Step 3: Cross multiply
    9,429.90x = 14,144.40 × 3,189.30
  4. Step 4: Simplify right side
    9,429.90x = 45,110,734.92
  5. Step 5: Solve for x
    x = 45,110,734.92/9,429.90
  6. Step 6: Final answer
    x = 4,783.80

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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.