Home / 14,008.38-21,015.87-4,147.30

Finding the Fourth Proportional to 14,008.38, 21,015.87 and 4,147.30

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Solution

The fourth proportional to 14,008.38, 21,015.87 and 4,147.30 is: 6,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.38 : 21,015.87 = 4,147.30 : x
  2. Step 2: Convert to fraction form
    14,008.38/21,015.87 = 4,147.30/x
  3. Step 3: Cross multiply
    14,008.38x = 21,015.87 × 4,147.30
  4. Step 4: Simplify right side
    14,008.38x = 87,159,117.65
  5. Step 5: Solve for x
    x = 87,159,117.65/14,008.38
  6. Step 6: Final answer
    x = 6,221.93

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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.