Home / 13,840.12-20,763.48-4,480.14

Finding the Fourth Proportional to 13,840.12, 20,763.48 and 4,480.14

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Solution

The fourth proportional to 13,840.12, 20,763.48 and 4,480.14 is: 6,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.12 : 20,763.48 = 4,480.14 : x
  2. Step 2: Convert to fraction form
    13,840.12/20,763.48 = 4,480.14/x
  3. Step 3: Cross multiply
    13,840.12x = 20,763.48 × 4,480.14
  4. Step 4: Simplify right side
    13,840.12x = 93,023,338.00
  5. Step 5: Solve for x
    x = 93,023,338.00/13,840.12
  6. Step 6: Final answer
    x = 6,721.28

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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.