Home / 13,486.43-20,240.24-9,355.51

Finding the Fourth Proportional to 13,486.43, 20,240.24 and 9,355.51

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Solution

The fourth proportional to 13,486.43, 20,240.24 and 9,355.51 is: 14,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.43 : 20,240.24 = 9,355.51 : x
  2. Step 2: Convert to fraction form
    13,486.43/20,240.24 = 9,355.51/x
  3. Step 3: Cross multiply
    13,486.43x = 20,240.24 × 9,355.51
  4. Step 4: Simplify right side
    13,486.43x = 189,357,670.34
  5. Step 5: Solve for x
    x = 189,357,670.34/13,486.43
  6. Step 6: Final answer
    x = 14,040.60

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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.