Home / 14,085.54-21,120.84-4,722.12

Finding the Fourth Proportional to 14,085.54, 21,120.84 and 4,722.12

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Solution

The fourth proportional to 14,085.54, 21,120.84 and 4,722.12 is: 7,080.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.54 : 21,120.84 = 4,722.12 : x
  2. Step 2: Convert to fraction form
    14,085.54/21,120.84 = 4,722.12/x
  3. Step 3: Cross multiply
    14,085.54x = 21,120.84 × 4,722.12
  4. Step 4: Simplify right side
    14,085.54x = 99,735,140.98
  5. Step 5: Solve for x
    x = 99,735,140.98/14,085.54
  6. Step 6: Final answer
    x = 7,080.68

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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.