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Finding the Fourth Proportional to 8,559.98, 12,833.74 and 5,779.76

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Solution

The fourth proportional to 8,559.98, 12,833.74 and 5,779.76 is: 8,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.98 : 12,833.74 = 5,779.76 : x
  2. Step 2: Convert to fraction form
    8,559.98/12,833.74 = 5,779.76/x
  3. Step 3: Cross multiply
    8,559.98x = 12,833.74 × 5,779.76
  4. Step 4: Simplify right side
    8,559.98x = 74,175,880.16
  5. Step 5: Solve for x
    x = 74,175,880.16/8,559.98
  6. Step 6: Final answer
    x = 8,665.43

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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.