Home / 12,940.93-19,407.30-5,543.43

Finding the Fourth Proportional to 12,940.93, 19,407.30 and 5,543.43

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Solution

The fourth proportional to 12,940.93, 19,407.30 and 5,543.43 is: 8,313.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940.93 : 19,407.30 = 5,543.43 : x
  2. Step 2: Convert to fraction form
    12,940.93/19,407.30 = 5,543.43/x
  3. Step 3: Cross multiply
    12,940.93x = 19,407.30 × 5,543.43
  4. Step 4: Simplify right side
    12,940.93x = 107,583,009.04
  5. Step 5: Solve for x
    x = 107,583,009.04/12,940.93
  6. Step 6: Final answer
    x = 8,313.39

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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.