Home / 14,255.03-21,391.73-7,685.80

Finding the Fourth Proportional to 14,255.03, 21,391.73 and 7,685.80

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Solution

The fourth proportional to 14,255.03, 21,391.73 and 7,685.80 is: 11,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.03 : 21,391.73 = 7,685.80 : x
  2. Step 2: Convert to fraction form
    14,255.03/21,391.73 = 7,685.80/x
  3. Step 3: Cross multiply
    14,255.03x = 21,391.73 × 7,685.80
  4. Step 4: Simplify right side
    14,255.03x = 164,412,495.35
  5. Step 5: Solve for x
    x = 164,412,495.35/14,255.03
  6. Step 6: Final answer
    x = 11,533.65

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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.