Home / 13,245.48-19,765.80-11,772.90

Finding the Fourth Proportional to 13,245.48, 19,765.80 and 11,772.90

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Solution

The fourth proportional to 13,245.48, 19,765.80 and 11,772.90 is: 17,568.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.48 : 19,765.80 = 11,772.90 : x
  2. Step 2: Convert to fraction form
    13,245.48/19,765.80 = 11,772.90/x
  3. Step 3: Cross multiply
    13,245.48x = 19,765.80 × 11,772.90
  4. Step 4: Simplify right side
    13,245.48x = 232,700,786.82
  5. Step 5: Solve for x
    x = 232,700,786.82/13,245.48
  6. Step 6: Final answer
    x = 17,568.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.