Home / 12,843.36-17,716.74-10,455.90

Finding the Fourth Proportional to 12,843.36, 17,716.74 and 10,455.90

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Solution

The fourth proportional to 12,843.36, 17,716.74 and 10,455.90 is: 14,423.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.36 : 17,716.74 = 10,455.90 : x
  2. Step 2: Convert to fraction form
    12,843.36/17,716.74 = 10,455.90/x
  3. Step 3: Cross multiply
    12,843.36x = 17,716.74 × 10,455.90
  4. Step 4: Simplify right side
    12,843.36x = 185,244,461.77
  5. Step 5: Solve for x
    x = 185,244,461.77/12,843.36
  6. Step 6: Final answer
    x = 14,423.36

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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.