Home / 13,907.36-20,863.32-6,887.66

Finding the Fourth Proportional to 13,907.36, 20,863.32 and 6,887.66

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Solution

The fourth proportional to 13,907.36, 20,863.32 and 6,887.66 is: 10,332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.36 : 20,863.32 = 6,887.66 : x
  2. Step 2: Convert to fraction form
    13,907.36/20,863.32 = 6,887.66/x
  3. Step 3: Cross multiply
    13,907.36x = 20,863.32 × 6,887.66
  4. Step 4: Simplify right side
    13,907.36x = 143,699,454.63
  5. Step 5: Solve for x
    x = 143,699,454.63/13,907.36
  6. Step 6: Final answer
    x = 10,332.62

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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.