Home / 8,701.85-13,052.81-2,779.00

Finding the Fourth Proportional to 8,701.85, 13,052.81 and 2,779.00

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Solution

The fourth proportional to 8,701.85, 13,052.81 and 2,779.00 is: 4,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.85 : 13,052.81 = 2,779.00 : x
  2. Step 2: Convert to fraction form
    8,701.85/13,052.81 = 2,779.00/x
  3. Step 3: Cross multiply
    8,701.85x = 13,052.81 × 2,779.00
  4. Step 4: Simplify right side
    8,701.85x = 36,273,733.31
  5. Step 5: Solve for x
    x = 36,273,733.31/8,701.85
  6. Step 6: Final answer
    x = 4,168.51

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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.