Home / 13,980.05-19,299.62-10,786.17

Finding the Fourth Proportional to 13,980.05, 19,299.62 and 10,786.17

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Solution

The fourth proportional to 13,980.05, 19,299.62 and 10,786.17 is: 14,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.05 : 19,299.62 = 10,786.17 : x
  2. Step 2: Convert to fraction form
    13,980.05/19,299.62 = 10,786.17/x
  3. Step 3: Cross multiply
    13,980.05x = 19,299.62 × 10,786.17
  4. Step 4: Simplify right side
    13,980.05x = 208,168,928.32
  5. Step 5: Solve for x
    x = 208,168,928.32/13,980.05
  6. Step 6: Final answer
    x = 14,890.43

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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.