Home / 13,799.90-20,703.30-4,440.80

Finding the Fourth Proportional to 13,799.90, 20,703.30 and 4,440.80

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Solution

The fourth proportional to 13,799.90, 20,703.30 and 4,440.80 is: 6,662.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.90 : 20,703.30 = 4,440.80 : x
  2. Step 2: Convert to fraction form
    13,799.90/20,703.30 = 4,440.80/x
  3. Step 3: Cross multiply
    13,799.90x = 20,703.30 × 4,440.80
  4. Step 4: Simplify right side
    13,799.90x = 91,939,214.64
  5. Step 5: Solve for x
    x = 91,939,214.64/13,799.90
  6. Step 6: Final answer
    x = 6,662.31

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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.