Home / 13,563.32-20,349.30-7,403

Finding the Fourth Proportional to 13,563.32, 20,349.30 and 7,403

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Solution

The fourth proportional to 13,563.32, 20,349.30 and 7,403 is: 11,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.32 : 20,349.30 = 7,403 : x
  2. Step 2: Convert to fraction form
    13,563.32/20,349.30 = 7,403/x
  3. Step 3: Cross multiply
    13,563.32x = 20,349.30 × 7,403
  4. Step 4: Simplify right side
    13,563.32x = 150,645,867.90
  5. Step 5: Solve for x
    x = 150,645,867.90/13,563.32
  6. Step 6: Final answer
    x = 11,106.86

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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.