Home / 13,984.20-21,000.60-9,853.20

Finding the Fourth Proportional to 13,984.20, 21,000.60 and 9,853.20

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Solution

The fourth proportional to 13,984.20, 21,000.60 and 9,853.20 is: 14,796.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.20 : 21,000.60 = 9,853.20 : x
  2. Step 2: Convert to fraction form
    13,984.20/21,000.60 = 9,853.20/x
  3. Step 3: Cross multiply
    13,984.20x = 21,000.60 × 9,853.20
  4. Step 4: Simplify right side
    13,984.20x = 206,923,111.92
  5. Step 5: Solve for x
    x = 206,923,111.92/13,984.20
  6. Step 6: Final answer
    x = 14,796.92

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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.