Home / 18,953.37-28,429.83-8,565.12

Finding the Fourth Proportional to 18,953.37, 28,429.83 and 8,565.12

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Solution

The fourth proportional to 18,953.37, 28,429.83 and 8,565.12 is: 12,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.37 : 28,429.83 = 8,565.12 : x
  2. Step 2: Convert to fraction form
    18,953.37/28,429.83 = 8,565.12/x
  3. Step 3: Cross multiply
    18,953.37x = 28,429.83 × 8,565.12
  4. Step 4: Simplify right side
    18,953.37x = 243,504,905.53
  5. Step 5: Solve for x
    x = 243,504,905.53/18,953.37
  6. Step 6: Final answer
    x = 12,847.58

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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.