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Finding the Fourth Proportional to 8,758.77, 12,087.03 and 4,779.80

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Solution

The fourth proportional to 8,758.77, 12,087.03 and 4,779.80 is: 6,596.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.77 : 12,087.03 = 4,779.80 : x
  2. Step 2: Convert to fraction form
    8,758.77/12,087.03 = 4,779.80/x
  3. Step 3: Cross multiply
    8,758.77x = 12,087.03 × 4,779.80
  4. Step 4: Simplify right side
    8,758.77x = 57,773,525.56
  5. Step 5: Solve for x
    x = 57,773,525.56/8,758.77
  6. Step 6: Final answer
    x = 6,596.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.