Home / 14,139.41-21,205.44-5,814.86

Finding the Fourth Proportional to 14,139.41, 21,205.44 and 5,814.86

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Solution

The fourth proportional to 14,139.41, 21,205.44 and 5,814.86 is: 8,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.41 : 21,205.44 = 5,814.86 : x
  2. Step 2: Convert to fraction form
    14,139.41/21,205.44 = 5,814.86/x
  3. Step 3: Cross multiply
    14,139.41x = 21,205.44 × 5,814.86
  4. Step 4: Simplify right side
    14,139.41x = 123,306,558.81
  5. Step 5: Solve for x
    x = 123,306,558.81/14,139.41
  6. Step 6: Final answer
    x = 8,720.77

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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.