Home / 12,961.36-19,459.80-6,725.68

Finding the Fourth Proportional to 12,961.36, 19,459.80 and 6,725.68

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Solution

The fourth proportional to 12,961.36, 19,459.80 and 6,725.68 is: 10,097.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.36 : 19,459.80 = 6,725.68 : x
  2. Step 2: Convert to fraction form
    12,961.36/19,459.80 = 6,725.68/x
  3. Step 3: Cross multiply
    12,961.36x = 19,459.80 × 6,725.68
  4. Step 4: Simplify right side
    12,961.36x = 130,880,387.66
  5. Step 5: Solve for x
    x = 130,880,387.66/12,961.36
  6. Step 6: Final answer
    x = 10,097.74

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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.