Home / 13,981.04-19,293.82-8,012.42

Finding the Fourth Proportional to 13,981.04, 19,293.82 and 8,012.42

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Solution

The fourth proportional to 13,981.04, 19,293.82 and 8,012.42 is: 11,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.04 : 19,293.82 = 8,012.42 : x
  2. Step 2: Convert to fraction form
    13,981.04/19,293.82 = 8,012.42/x
  3. Step 3: Cross multiply
    13,981.04x = 19,293.82 × 8,012.42
  4. Step 4: Simplify right side
    13,981.04x = 154,590,072.74
  5. Step 5: Solve for x
    x = 154,590,072.74/13,981.04
  6. Step 6: Final answer
    x = 11,057.13

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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.