Home / 13,751.10-20,603.97-12,602.12

Finding the Fourth Proportional to 13,751.10, 20,603.97 and 12,602.12

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Solution

The fourth proportional to 13,751.10, 20,603.97 and 12,602.12 is: 18,882.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.10 : 20,603.97 = 12,602.12 : x
  2. Step 2: Convert to fraction form
    13,751.10/20,603.97 = 12,602.12/x
  3. Step 3: Cross multiply
    13,751.10x = 20,603.97 × 12,602.12
  4. Step 4: Simplify right side
    13,751.10x = 259,653,599.40
  5. Step 5: Solve for x
    x = 259,653,599.40/13,751.10
  6. Step 6: Final answer
    x = 18,882.39

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1.5x scale

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.