Home / 13,228.88-19,840.44-6,648.08

Finding the Fourth Proportional to 13,228.88, 19,840.44 and 6,648.08

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Solution

The fourth proportional to 13,228.88, 19,840.44 and 6,648.08 is: 9,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.88 : 19,840.44 = 6,648.08 : x
  2. Step 2: Convert to fraction form
    13,228.88/19,840.44 = 6,648.08/x
  3. Step 3: Cross multiply
    13,228.88x = 19,840.44 × 6,648.08
  4. Step 4: Simplify right side
    13,228.88x = 131,900,832.36
  5. Step 5: Solve for x
    x = 131,900,832.36/13,228.88
  6. Step 6: Final answer
    x = 9,970.67

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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.