Home / 14,699.91-20,285.88-8,412.27

Finding the Fourth Proportional to 14,699.91, 20,285.88 and 8,412.27

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Solution

The fourth proportional to 14,699.91, 20,285.88 and 8,412.27 is: 11,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.91 : 20,285.88 = 8,412.27 : x
  2. Step 2: Convert to fraction form
    14,699.91/20,285.88 = 8,412.27/x
  3. Step 3: Cross multiply
    14,699.91x = 20,285.88 × 8,412.27
  4. Step 4: Simplify right side
    14,699.91x = 170,650,299.75
  5. Step 5: Solve for x
    x = 170,650,299.75/14,699.91
  6. Step 6: Final answer
    x = 11,608.94

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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.