Home / 12,914.52-19,355.54-6,991.17

Finding the Fourth Proportional to 12,914.52, 19,355.54 and 6,991.17

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Solution

The fourth proportional to 12,914.52, 19,355.54 and 6,991.17 is: 10,477.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.52 : 19,355.54 = 6,991.17 : x
  2. Step 2: Convert to fraction form
    12,914.52/19,355.54 = 6,991.17/x
  3. Step 3: Cross multiply
    12,914.52x = 19,355.54 × 6,991.17
  4. Step 4: Simplify right side
    12,914.52x = 135,317,835.63
  5. Step 5: Solve for x
    x = 135,317,835.63/12,914.52
  6. Step 6: Final answer
    x = 10,477.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.