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Finding the Fourth Proportional to 8,869.15, 13,303.74 and 8,327.86

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Solution

The fourth proportional to 8,869.15, 13,303.74 and 8,327.86 is: 12,491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.15 : 13,303.74 = 8,327.86 : x
  2. Step 2: Convert to fraction form
    8,869.15/13,303.74 = 8,327.86/x
  3. Step 3: Cross multiply
    8,869.15x = 13,303.74 × 8,327.86
  4. Step 4: Simplify right side
    8,869.15x = 110,791,757.00
  5. Step 5: Solve for x
    x = 110,791,757.00/8,869.15
  6. Step 6: Final answer
    x = 12,491.82

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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.