Home / 13,311.48-19,971.54-11,351.88

Finding the Fourth Proportional to 13,311.48, 19,971.54 and 11,351.88

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Solution

The fourth proportional to 13,311.48, 19,971.54 and 11,351.88 is: 17,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.48 : 19,971.54 = 11,351.88 : x
  2. Step 2: Convert to fraction form
    13,311.48/19,971.54 = 11,351.88/x
  3. Step 3: Cross multiply
    13,311.48x = 19,971.54 × 11,351.88
  4. Step 4: Simplify right side
    13,311.48x = 226,714,525.50
  5. Step 5: Solve for x
    x = 226,714,525.50/13,311.48
  6. Step 6: Final answer
    x = 17,031.50

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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.