Home / 14,076.90-21,115.32-5,647.22

Finding the Fourth Proportional to 14,076.90, 21,115.32 and 5,647.22

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Solution

The fourth proportional to 14,076.90, 21,115.32 and 5,647.22 is: 8,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.90 : 21,115.32 = 5,647.22 : x
  2. Step 2: Convert to fraction form
    14,076.90/21,115.32 = 5,647.22/x
  3. Step 3: Cross multiply
    14,076.90x = 21,115.32 × 5,647.22
  4. Step 4: Simplify right side
    14,076.90x = 119,242,751.83
  5. Step 5: Solve for x
    x = 119,242,751.83/14,076.90
  6. Step 6: Final answer
    x = 8,470.81

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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.