Home / 11,857.07-16,362.57-6,479.39

Finding the Fourth Proportional to 11,857.07, 16,362.57 and 6,479.39

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Solution

The fourth proportional to 11,857.07, 16,362.57 and 6,479.39 is: 8,941.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,857.07 : 16,362.57 = 6,479.39 : x
  2. Step 2: Convert to fraction form
    11,857.07/16,362.57 = 6,479.39/x
  3. Step 3: Cross multiply
    11,857.07x = 16,362.57 × 6,479.39
  4. Step 4: Simplify right side
    11,857.07x = 106,019,513.34
  5. Step 5: Solve for x
    x = 106,019,513.34/11,857.07
  6. Step 6: Final answer
    x = 8,941.46

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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.