Home / 13,424.60-18,498.30-9,450.20

Finding the Fourth Proportional to 13,424.60, 18,498.30 and 9,450.20

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Solution

The fourth proportional to 13,424.60, 18,498.30 and 9,450.20 is: 13,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.60 : 18,498.30 = 9,450.20 : x
  2. Step 2: Convert to fraction form
    13,424.60/18,498.30 = 9,450.20/x
  3. Step 3: Cross multiply
    13,424.60x = 18,498.30 × 9,450.20
  4. Step 4: Simplify right side
    13,424.60x = 174,812,634.66
  5. Step 5: Solve for x
    x = 174,812,634.66/13,424.60
  6. Step 6: Final answer
    x = 13,021.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.