Home / 13,776.37-20,656.77-12,600.86

Finding the Fourth Proportional to 13,776.37, 20,656.77 and 12,600.86

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Solution

The fourth proportional to 13,776.37, 20,656.77 and 12,600.86 is: 18,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.37 : 20,656.77 = 12,600.86 : x
  2. Step 2: Convert to fraction form
    13,776.37/20,656.77 = 12,600.86/x
  3. Step 3: Cross multiply
    13,776.37x = 20,656.77 × 12,600.86
  4. Step 4: Simplify right side
    13,776.37x = 260,292,963.54
  5. Step 5: Solve for x
    x = 260,292,963.54/13,776.37
  6. Step 6: Final answer
    x = 18,894.17

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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.