Home / 14,920.31-20,590.46-8,206.37

Finding the Fourth Proportional to 14,920.31, 20,590.46 and 8,206.37

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Solution

The fourth proportional to 14,920.31, 20,590.46 and 8,206.37 is: 11,325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.31 : 20,590.46 = 8,206.37 : x
  2. Step 2: Convert to fraction form
    14,920.31/20,590.46 = 8,206.37/x
  3. Step 3: Cross multiply
    14,920.31x = 20,590.46 × 8,206.37
  4. Step 4: Simplify right side
    14,920.31x = 168,972,917.48
  5. Step 5: Solve for x
    x = 168,972,917.48/14,920.31
  6. Step 6: Final answer
    x = 11,325.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.