Home / 13,739.36-20,621.18-7,505.06

Finding the Fourth Proportional to 13,739.36, 20,621.18 and 7,505.06

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Solution

The fourth proportional to 13,739.36, 20,621.18 and 7,505.06 is: 11,264.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.36 : 20,621.18 = 7,505.06 : x
  2. Step 2: Convert to fraction form
    13,739.36/20,621.18 = 7,505.06/x
  3. Step 3: Cross multiply
    13,739.36x = 20,621.18 × 7,505.06
  4. Step 4: Simplify right side
    13,739.36x = 154,763,108.83
  5. Step 5: Solve for x
    x = 154,763,108.83/13,739.36
  6. Step 6: Final answer
    x = 11,264.22

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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.