Home / 12,800.86-19,199.67-5,015.14

Finding the Fourth Proportional to 12,800.86, 19,199.67 and 5,015.14

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Solution

The fourth proportional to 12,800.86, 19,199.67 and 5,015.14 is: 7,522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.86 : 19,199.67 = 5,015.14 : x
  2. Step 2: Convert to fraction form
    12,800.86/19,199.67 = 5,015.14/x
  3. Step 3: Cross multiply
    12,800.86x = 19,199.67 × 5,015.14
  4. Step 4: Simplify right side
    12,800.86x = 96,289,033.00
  5. Step 5: Solve for x
    x = 96,289,033.00/12,800.86
  6. Step 6: Final answer
    x = 7,522.08

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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.