Home / 13,343.60-18,415.34-8,308.04

Finding the Fourth Proportional to 13,343.60, 18,415.34 and 8,308.04

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Solution

The fourth proportional to 13,343.60, 18,415.34 and 8,308.04 is: 11,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.60 : 18,415.34 = 8,308.04 : x
  2. Step 2: Convert to fraction form
    13,343.60/18,415.34 = 8,308.04/x
  3. Step 3: Cross multiply
    13,343.60x = 18,415.34 × 8,308.04
  4. Step 4: Simplify right side
    13,343.60x = 152,995,247.72
  5. Step 5: Solve for x
    x = 152,995,247.72/13,343.60
  6. Step 6: Final answer
    x = 11,465.82

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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.