Home / 14,289.06-19,716.56-8,980.12

Finding the Fourth Proportional to 14,289.06, 19,716.56 and 8,980.12

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Solution

The fourth proportional to 14,289.06, 19,716.56 and 8,980.12 is: 12,391.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.06 : 19,716.56 = 8,980.12 : x
  2. Step 2: Convert to fraction form
    14,289.06/19,716.56 = 8,980.12/x
  3. Step 3: Cross multiply
    14,289.06x = 19,716.56 × 8,980.12
  4. Step 4: Simplify right side
    14,289.06x = 177,057,074.79
  5. Step 5: Solve for x
    x = 177,057,074.79/14,289.06
  6. Step 6: Final answer
    x = 12,391.09

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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.