Home / 14,144.30-21,215.58-5,379.02

Finding the Fourth Proportional to 14,144.30, 21,215.58 and 5,379.02

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Solution

The fourth proportional to 14,144.30, 21,215.58 and 5,379.02 is: 8,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.30 : 21,215.58 = 5,379.02 : x
  2. Step 2: Convert to fraction form
    14,144.30/21,215.58 = 5,379.02/x
  3. Step 3: Cross multiply
    14,144.30x = 21,215.58 × 5,379.02
  4. Step 4: Simplify right side
    14,144.30x = 114,119,029.13
  5. Step 5: Solve for x
    x = 114,119,029.13/14,144.30
  6. Step 6: Final answer
    x = 8,068.20

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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.