Home / 11,711.60-16,160.09-6,675.91

Finding the Fourth Proportional to 11,711.60, 16,160.09 and 6,675.91

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Solution

The fourth proportional to 11,711.60, 16,160.09 and 6,675.91 is: 9,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.60 : 16,160.09 = 6,675.91 : x
  2. Step 2: Convert to fraction form
    11,711.60/16,160.09 = 6,675.91/x
  3. Step 3: Cross multiply
    11,711.60x = 16,160.09 × 6,675.91
  4. Step 4: Simplify right side
    11,711.60x = 107,883,232.65
  5. Step 5: Solve for x
    x = 107,883,232.65/11,711.60
  6. Step 6: Final answer
    x = 9,211.66

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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.