Home / 14,009.31-21,006.68-4,147.25

Finding the Fourth Proportional to 14,009.31, 21,006.68 and 4,147.25

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Solution

The fourth proportional to 14,009.31, 21,006.68 and 4,147.25 is: 6,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.31 : 21,006.68 = 4,147.25 : x
  2. Step 2: Convert to fraction form
    14,009.31/21,006.68 = 4,147.25/x
  3. Step 3: Cross multiply
    14,009.31x = 21,006.68 × 4,147.25
  4. Step 4: Simplify right side
    14,009.31x = 87,119,827.86
  5. Step 5: Solve for x
    x = 87,119,827.86/14,009.31
  6. Step 6: Final answer
    x = 6,218.71

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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.