Home / 11,981.61-17,955.72-6,125.85

Finding the Fourth Proportional to 11,981.61, 17,955.72 and 6,125.85

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Solution

The fourth proportional to 11,981.61, 17,955.72 and 6,125.85 is: 9,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.61 : 17,955.72 = 6,125.85 : x
  2. Step 2: Convert to fraction form
    11,981.61/17,955.72 = 6,125.85/x
  3. Step 3: Cross multiply
    11,981.61x = 17,955.72 × 6,125.85
  4. Step 4: Simplify right side
    11,981.61x = 109,994,047.36
  5. Step 5: Solve for x
    x = 109,994,047.36/11,981.61
  6. Step 6: Final answer
    x = 9,180.24

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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.