Home / 11,860.15-16,366.85-6,555.06

Finding the Fourth Proportional to 11,860.15, 16,366.85 and 6,555.06

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Solution

The fourth proportional to 11,860.15, 16,366.85 and 6,555.06 is: 9,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.15 : 16,366.85 = 6,555.06 : x
  2. Step 2: Convert to fraction form
    11,860.15/16,366.85 = 6,555.06/x
  3. Step 3: Cross multiply
    11,860.15x = 16,366.85 × 6,555.06
  4. Step 4: Simplify right side
    11,860.15x = 107,285,683.76
  5. Step 5: Solve for x
    x = 107,285,683.76/11,860.15
  6. Step 6: Final answer
    x = 9,045.90

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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.