Home / 12,813.32-19,220.10-4,493.54

Finding the Fourth Proportional to 12,813.32, 19,220.10 and 4,493.54

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Solution

The fourth proportional to 12,813.32, 19,220.10 and 4,493.54 is: 6,740.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,813.32 : 19,220.10 = 4,493.54 : x
  2. Step 2: Convert to fraction form
    12,813.32/19,220.10 = 4,493.54/x
  3. Step 3: Cross multiply
    12,813.32x = 19,220.10 × 4,493.54
  4. Step 4: Simplify right side
    12,813.32x = 86,366,192.05
  5. Step 5: Solve for x
    x = 86,366,192.05/12,813.32
  6. Step 6: Final answer
    x = 6,740.35

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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.