Home / 13,802.36-20,697.30-3,939.30

Finding the Fourth Proportional to 13,802.36, 20,697.30 and 3,939.30

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Solution

The fourth proportional to 13,802.36, 20,697.30 and 3,939.30 is: 5,907.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.36 : 20,697.30 = 3,939.30 : x
  2. Step 2: Convert to fraction form
    13,802.36/20,697.30 = 3,939.30/x
  3. Step 3: Cross multiply
    13,802.36x = 20,697.30 × 3,939.30
  4. Step 4: Simplify right side
    13,802.36x = 81,532,873.89
  5. Step 5: Solve for x
    x = 81,532,873.89/13,802.36
  6. Step 6: Final answer
    x = 5,907.17

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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.