Home / 13,840.56-20,749.32-6,441.12

Finding the Fourth Proportional to 13,840.56, 20,749.32 and 6,441.12

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Solution

The fourth proportional to 13,840.56, 20,749.32 and 6,441.12 is: 9,656.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.56 : 20,749.32 = 6,441.12 : x
  2. Step 2: Convert to fraction form
    13,840.56/20,749.32 = 6,441.12/x
  3. Step 3: Cross multiply
    13,840.56x = 20,749.32 × 6,441.12
  4. Step 4: Simplify right side
    13,840.56x = 133,648,860.04
  5. Step 5: Solve for x
    x = 133,648,860.04/13,840.56
  6. Step 6: Final answer
    x = 9,656.32

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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.