Home / 13,660.86-18,850.59-10,077.77

Finding the Fourth Proportional to 13,660.86, 18,850.59 and 10,077.77

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Solution

The fourth proportional to 13,660.86, 18,850.59 and 10,077.77 is: 13,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.86 : 18,850.59 = 10,077.77 : x
  2. Step 2: Convert to fraction form
    13,660.86/18,850.59 = 10,077.77/x
  3. Step 3: Cross multiply
    13,660.86x = 18,850.59 × 10,077.77
  4. Step 4: Simplify right side
    13,660.86x = 189,971,816.13
  5. Step 5: Solve for x
    x = 189,971,816.13/13,660.86
  6. Step 6: Final answer
    x = 13,906.29

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1.5x scale

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.