Home / 12,893.40-19,342.26-4,127.40

Finding the Fourth Proportional to 12,893.40, 19,342.26 and 4,127.40

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Solution

The fourth proportional to 12,893.40, 19,342.26 and 4,127.40 is: 6,191.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,893.40 : 19,342.26 = 4,127.40 : x
  2. Step 2: Convert to fraction form
    12,893.40/19,342.26 = 4,127.40/x
  3. Step 3: Cross multiply
    12,893.40x = 19,342.26 × 4,127.40
  4. Step 4: Simplify right side
    12,893.40x = 79,833,243.92
  5. Step 5: Solve for x
    x = 79,833,243.92/12,893.40
  6. Step 6: Final answer
    x = 6,191.79

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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.