Home / 14,148.92-21,208.77-4,785.86

Finding the Fourth Proportional to 14,148.92, 21,208.77 and 4,785.86

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Solution

The fourth proportional to 14,148.92, 21,208.77 and 4,785.86 is: 7,173.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.92 : 21,208.77 = 4,785.86 : x
  2. Step 2: Convert to fraction form
    14,148.92/21,208.77 = 4,785.86/x
  3. Step 3: Cross multiply
    14,148.92x = 21,208.77 × 4,785.86
  4. Step 4: Simplify right side
    14,148.92x = 101,502,097.95
  5. Step 5: Solve for x
    x = 101,502,097.95/14,148.92
  6. Step 6: Final answer
    x = 7,173.84

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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.