Home / 11,685.36-16,125.15-6,380.07

Finding the Fourth Proportional to 11,685.36, 16,125.15 and 6,380.07

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Solution

The fourth proportional to 11,685.36, 16,125.15 and 6,380.07 is: 8,804.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.36 : 16,125.15 = 6,380.07 : x
  2. Step 2: Convert to fraction form
    11,685.36/16,125.15 = 6,380.07/x
  3. Step 3: Cross multiply
    11,685.36x = 16,125.15 × 6,380.07
  4. Step 4: Simplify right side
    11,685.36x = 102,879,585.76
  5. Step 5: Solve for x
    x = 102,879,585.76/11,685.36
  6. Step 6: Final answer
    x = 8,804.14

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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.