Home / 13,603.75-20,415.85-10,101.92

Finding the Fourth Proportional to 13,603.75, 20,415.85 and 10,101.92

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Solution

The fourth proportional to 13,603.75, 20,415.85 and 10,101.92 is: 15,160.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603.75 : 20,415.85 = 10,101.92 : x
  2. Step 2: Convert to fraction form
    13,603.75/20,415.85 = 10,101.92/x
  3. Step 3: Cross multiply
    13,603.75x = 20,415.85 × 10,101.92
  4. Step 4: Simplify right side
    13,603.75x = 206,239,156.10
  5. Step 5: Solve for x
    x = 206,239,156.10/13,603.75
  6. Step 6: Final answer
    x = 15,160.47

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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.