Home / 13,435.12-20,102-12,070.94

Finding the Fourth Proportional to 13,435.12, 20,102 and 12,070.94

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Solution

The fourth proportional to 13,435.12, 20,102 and 12,070.94 is: 18,060.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.12 : 20,102 = 12,070.94 : x
  2. Step 2: Convert to fraction form
    13,435.12/20,102 = 12,070.94/x
  3. Step 3: Cross multiply
    13,435.12x = 20,102 × 12,070.94
  4. Step 4: Simplify right side
    13,435.12x = 242,650,035.88
  5. Step 5: Solve for x
    x = 242,650,035.88/13,435.12
  6. Step 6: Final answer
    x = 18,060.88

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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.