Home / 13,677.86-18,849.66-9,894.61

Finding the Fourth Proportional to 13,677.86, 18,849.66 and 9,894.61

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Solution

The fourth proportional to 13,677.86, 18,849.66 and 9,894.61 is: 13,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.86 : 18,849.66 = 9,894.61 : x
  2. Step 2: Convert to fraction form
    13,677.86/18,849.66 = 9,894.61/x
  3. Step 3: Cross multiply
    13,677.86x = 18,849.66 × 9,894.61
  4. Step 4: Simplify right side
    13,677.86x = 186,509,970.42
  5. Step 5: Solve for x
    x = 186,509,970.42/13,677.86
  6. Step 6: Final answer
    x = 13,635.90

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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.