Home / 10,858.40-16,271.19-8,072.00

Finding the Fourth Proportional to 10,858.40, 16,271.19 and 8,072.00

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Solution

The fourth proportional to 10,858.40, 16,271.19 and 8,072.00 is: 12,095.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.40 : 16,271.19 = 8,072.00 : x
  2. Step 2: Convert to fraction form
    10,858.40/16,271.19 = 8,072.00/x
  3. Step 3: Cross multiply
    10,858.40x = 16,271.19 × 8,072.00
  4. Step 4: Simplify right side
    10,858.40x = 131,340,964.32
  5. Step 5: Solve for x
    x = 131,340,964.32/10,858.40
  6. Step 6: Final answer
    x = 12,095.80

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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.