Home / 13,970.75-19,282.38-8,006.42

Finding the Fourth Proportional to 13,970.75, 19,282.38 and 8,006.42

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Solution

The fourth proportional to 13,970.75, 19,282.38 and 8,006.42 is: 11,050.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.75 : 19,282.38 = 8,006.42 : x
  2. Step 2: Convert to fraction form
    13,970.75/19,282.38 = 8,006.42/x
  3. Step 3: Cross multiply
    13,970.75x = 19,282.38 × 8,006.42
  4. Step 4: Simplify right side
    13,970.75x = 154,382,881.09
  5. Step 5: Solve for x
    x = 154,382,881.09/13,970.75
  6. Step 6: Final answer
    x = 11,050.43

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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.