Home / 12,783.48-19,180.68-6,944.28

Finding the Fourth Proportional to 12,783.48, 19,180.68 and 6,944.28

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Solution

The fourth proportional to 12,783.48, 19,180.68 and 6,944.28 is: 10,419.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783.48 : 19,180.68 = 6,944.28 : x
  2. Step 2: Convert to fraction form
    12,783.48/19,180.68 = 6,944.28/x
  3. Step 3: Cross multiply
    12,783.48x = 19,180.68 × 6,944.28
  4. Step 4: Simplify right side
    12,783.48x = 133,196,012.51
  5. Step 5: Solve for x
    x = 133,196,012.51/12,783.48
  6. Step 6: Final answer
    x = 10,419.39

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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.