Home / 12,946.13-19,405.73-8,786.48

Finding the Fourth Proportional to 12,946.13, 19,405.73 and 8,786.48

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Solution

The fourth proportional to 12,946.13, 19,405.73 and 8,786.48 is: 13,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.13 : 19,405.73 = 8,786.48 : x
  2. Step 2: Convert to fraction form
    12,946.13/19,405.73 = 8,786.48/x
  3. Step 3: Cross multiply
    12,946.13x = 19,405.73 × 8,786.48
  4. Step 4: Simplify right side
    12,946.13x = 170,508,056.24
  5. Step 5: Solve for x
    x = 170,508,056.24/12,946.13
  6. Step 6: Final answer
    x = 13,170.58

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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.