Home / 13,975.42-19,287.48-8,007.88

Finding the Fourth Proportional to 13,975.42, 19,287.48 and 8,007.88

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Solution

The fourth proportional to 13,975.42, 19,287.48 and 8,007.88 is: 11,051.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.42 : 19,287.48 = 8,007.88 : x
  2. Step 2: Convert to fraction form
    13,975.42/19,287.48 = 8,007.88/x
  3. Step 3: Cross multiply
    13,975.42x = 19,287.48 × 8,007.88
  4. Step 4: Simplify right side
    13,975.42x = 154,451,825.34
  5. Step 5: Solve for x
    x = 154,451,825.34/13,975.42
  6. Step 6: Final answer
    x = 11,051.68

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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.