Home / 14,219.21-21,296.52-8,660.32

Finding the Fourth Proportional to 14,219.21, 21,296.52 and 8,660.32

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Solution

The fourth proportional to 14,219.21, 21,296.52 and 8,660.32 is: 12,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.21 : 21,296.52 = 8,660.32 : x
  2. Step 2: Convert to fraction form
    14,219.21/21,296.52 = 8,660.32/x
  3. Step 3: Cross multiply
    14,219.21x = 21,296.52 × 8,660.32
  4. Step 4: Simplify right side
    14,219.21x = 184,434,624.85
  5. Step 5: Solve for x
    x = 184,434,624.85/14,219.21
  6. Step 6: Final answer
    x = 12,970.80

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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.