Home / 13,628-20,445.60-4,394.24

Finding the Fourth Proportional to 13,628, 20,445.60 and 4,394.24

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Solution

The fourth proportional to 13,628, 20,445.60 and 4,394.24 is: 6,592.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628 : 20,445.60 = 4,394.24 : x
  2. Step 2: Convert to fraction form
    13,628/20,445.60 = 4,394.24/x
  3. Step 3: Cross multiply
    13,628x = 20,445.60 × 4,394.24
  4. Step 4: Simplify right side
    13,628x = 89,842,873.34
  5. Step 5: Solve for x
    x = 89,842,873.34/13,628
  6. Step 6: Final answer
    x = 6,592.52

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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.