Home / 12,711.18-19,070.37-6,871.98

Finding the Fourth Proportional to 12,711.18, 19,070.37 and 6,871.98

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Solution

The fourth proportional to 12,711.18, 19,070.37 and 6,871.98 is: 10,309.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.18 : 19,070.37 = 6,871.98 : x
  2. Step 2: Convert to fraction form
    12,711.18/19,070.37 = 6,871.98/x
  3. Step 3: Cross multiply
    12,711.18x = 19,070.37 × 6,871.98
  4. Step 4: Simplify right side
    12,711.18x = 131,051,201.23
  5. Step 5: Solve for x
    x = 131,051,201.23/12,711.18
  6. Step 6: Final answer
    x = 10,309.92

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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.