Home / 12,814.10-19,223.13-5,418.59

Finding the Fourth Proportional to 12,814.10, 19,223.13 and 5,418.59

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Solution

The fourth proportional to 12,814.10, 19,223.13 and 5,418.59 is: 8,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.10 : 19,223.13 = 5,418.59 : x
  2. Step 2: Convert to fraction form
    12,814.10/19,223.13 = 5,418.59/x
  3. Step 3: Cross multiply
    12,814.10x = 19,223.13 × 5,418.59
  4. Step 4: Simplify right side
    12,814.10x = 104,162,259.99
  5. Step 5: Solve for x
    x = 104,162,259.99/12,814.10
  6. Step 6: Final answer
    x = 8,128.72

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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.