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Finding the Fourth Proportional to 8,886.93, 13,311.23 and 4,199.87

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Solution

The fourth proportional to 8,886.93, 13,311.23 and 4,199.87 is: 6,290.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.93 : 13,311.23 = 4,199.87 : x
  2. Step 2: Convert to fraction form
    8,886.93/13,311.23 = 4,199.87/x
  3. Step 3: Cross multiply
    8,886.93x = 13,311.23 × 4,199.87
  4. Step 4: Simplify right side
    8,886.93x = 55,905,347.98
  5. Step 5: Solve for x
    x = 55,905,347.98/8,886.93
  6. Step 6: Final answer
    x = 6,290.74

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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.