Home / 14,006.38-21,009.51-4,145.72

Finding the Fourth Proportional to 14,006.38, 21,009.51 and 4,145.72

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Solution

The fourth proportional to 14,006.38, 21,009.51 and 4,145.72 is: 6,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.38 : 21,009.51 = 4,145.72 : x
  2. Step 2: Convert to fraction form
    14,006.38/21,009.51 = 4,145.72/x
  3. Step 3: Cross multiply
    14,006.38x = 21,009.51 × 4,145.72
  4. Step 4: Simplify right side
    14,006.38x = 87,099,545.80
  5. Step 5: Solve for x
    x = 87,099,545.80/14,006.38
  6. Step 6: Final answer
    x = 6,218.56

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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.