Home / 13,792.08-19,015.28-10,020.72

Finding the Fourth Proportional to 13,792.08, 19,015.28 and 10,020.72

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Solution

The fourth proportional to 13,792.08, 19,015.28 and 10,020.72 is: 13,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.08 : 19,015.28 = 10,020.72 : x
  2. Step 2: Convert to fraction form
    13,792.08/19,015.28 = 10,020.72/x
  3. Step 3: Cross multiply
    13,792.08x = 19,015.28 × 10,020.72
  4. Step 4: Simplify right side
    13,792.08x = 190,546,796.60
  5. Step 5: Solve for x
    x = 190,546,796.60/13,792.08
  6. Step 6: Final answer
    x = 13,815.67

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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.