Home / 13,975.29-19,287.32-8,007.75

Finding the Fourth Proportional to 13,975.29, 19,287.32 and 8,007.75

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Solution

The fourth proportional to 13,975.29, 19,287.32 and 8,007.75 is: 11,051.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.29 : 19,287.32 = 8,007.75 : x
  2. Step 2: Convert to fraction form
    13,975.29/19,287.32 = 8,007.75/x
  3. Step 3: Cross multiply
    13,975.29x = 19,287.32 × 8,007.75
  4. Step 4: Simplify right side
    13,975.29x = 154,447,996.69
  5. Step 5: Solve for x
    x = 154,447,996.69/13,975.29
  6. Step 6: Final answer
    x = 11,051.51

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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.