Home / 14,167.48-19,550.86-7,879.80

Finding the Fourth Proportional to 14,167.48, 19,550.86 and 7,879.80

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Solution

The fourth proportional to 14,167.48, 19,550.86 and 7,879.80 is: 10,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,167.48 : 19,550.86 = 7,879.80 : x
  2. Step 2: Convert to fraction form
    14,167.48/19,550.86 = 7,879.80/x
  3. Step 3: Cross multiply
    14,167.48x = 19,550.86 × 7,879.80
  4. Step 4: Simplify right side
    14,167.48x = 154,056,866.63
  5. Step 5: Solve for x
    x = 154,056,866.63/14,167.48
  6. Step 6: Final answer
    x = 10,873.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.