Home / 13,991.06-21,001.18-6,205.34

Finding the Fourth Proportional to 13,991.06, 21,001.18 and 6,205.34

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Solution

The fourth proportional to 13,991.06, 21,001.18 and 6,205.34 is: 9,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.06 : 21,001.18 = 6,205.34 : x
  2. Step 2: Convert to fraction form
    13,991.06/21,001.18 = 6,205.34/x
  3. Step 3: Cross multiply
    13,991.06x = 21,001.18 × 6,205.34
  4. Step 4: Simplify right side
    13,991.06x = 130,319,462.30
  5. Step 5: Solve for x
    x = 130,319,462.30/13,991.06
  6. Step 6: Final answer
    x = 9,314.48

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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.