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Finding the Fourth Proportional to 12,783.35, 19,134.09 and 6,845.39

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Solution

The fourth proportional to 12,783.35, 19,134.09 and 6,845.39 is: 10,246.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783.35 : 19,134.09 = 6,845.39 : x
  2. Step 2: Convert to fraction form
    12,783.35/19,134.09 = 6,845.39/x
  3. Step 3: Cross multiply
    12,783.35x = 19,134.09 × 6,845.39
  4. Step 4: Simplify right side
    12,783.35x = 130,980,356.18
  5. Step 5: Solve for x
    x = 130,980,356.18/12,783.35
  6. Step 6: Final answer
    x = 10,246.17

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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.