Home / 12,981.22-19,477.21-6,223.39

Finding the Fourth Proportional to 12,981.22, 19,477.21 and 6,223.39

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Solution

The fourth proportional to 12,981.22, 19,477.21 and 6,223.39 is: 9,337.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,981.22 : 19,477.21 = 6,223.39 : x
  2. Step 2: Convert to fraction form
    12,981.22/19,477.21 = 6,223.39/x
  3. Step 3: Cross multiply
    12,981.22x = 19,477.21 × 6,223.39
  4. Step 4: Simplify right side
    12,981.22x = 121,214,273.94
  5. Step 5: Solve for x
    x = 121,214,273.94/12,981.22
  6. Step 6: Final answer
    x = 9,337.66

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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.