Home / 12,386.34-17,083.22-9,995.68

Finding the Fourth Proportional to 12,386.34, 17,083.22 and 9,995.68

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Solution

The fourth proportional to 12,386.34, 17,083.22 and 9,995.68 is: 13,786.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.34 : 17,083.22 = 9,995.68 : x
  2. Step 2: Convert to fraction form
    12,386.34/17,083.22 = 9,995.68/x
  3. Step 3: Cross multiply
    12,386.34x = 17,083.22 × 9,995.68
  4. Step 4: Simplify right side
    12,386.34x = 170,758,400.49
  5. Step 5: Solve for x
    x = 170,758,400.49/12,386.34
  6. Step 6: Final answer
    x = 13,786.03

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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.