Home / 12,852.39-19,280.78-4,418.49

Finding the Fourth Proportional to 12,852.39, 19,280.78 and 4,418.49

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Solution

The fourth proportional to 12,852.39, 19,280.78 and 4,418.49 is: 6,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.39 : 19,280.78 = 4,418.49 : x
  2. Step 2: Convert to fraction form
    12,852.39/19,280.78 = 4,418.49/x
  3. Step 3: Cross multiply
    12,852.39x = 19,280.78 × 4,418.49
  4. Step 4: Simplify right side
    12,852.39x = 85,191,944.67
  5. Step 5: Solve for x
    x = 85,191,944.67/12,852.39
  6. Step 6: Final answer
    x = 6,628.49

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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.