Home / 15,028.16-20,736.48-9,723.20

Finding the Fourth Proportional to 15,028.16, 20,736.48 and 9,723.20

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Solution

The fourth proportional to 15,028.16, 20,736.48 and 9,723.20 is: 13,416.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.16 : 20,736.48 = 9,723.20 : x
  2. Step 2: Convert to fraction form
    15,028.16/20,736.48 = 9,723.20/x
  3. Step 3: Cross multiply
    15,028.16x = 20,736.48 × 9,723.20
  4. Step 4: Simplify right side
    15,028.16x = 201,624,942.34
  5. Step 5: Solve for x
    x = 201,624,942.34/15,028.16
  6. Step 6: Final answer
    x = 13,416.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.