Home / 14,127.20-21,169.20-13,349.60

Finding the Fourth Proportional to 14,127.20, 21,169.20 and 13,349.60

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Solution

The fourth proportional to 14,127.20, 21,169.20 and 13,349.60 is: 20,003.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.20 : 21,169.20 = 13,349.60 : x
  2. Step 2: Convert to fraction form
    14,127.20/21,169.20 = 13,349.60/x
  3. Step 3: Cross multiply
    14,127.20x = 21,169.20 × 13,349.60
  4. Step 4: Simplify right side
    14,127.20x = 282,600,352.32
  5. Step 5: Solve for x
    x = 282,600,352.32/14,127.20
  6. Step 6: Final answer
    x = 20,003.99

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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.