Home / 13,609.16-18,775.80-8,896.17

Finding the Fourth Proportional to 13,609.16, 18,775.80 and 8,896.17

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Solution

The fourth proportional to 13,609.16, 18,775.80 and 8,896.17 is: 12,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.16 : 18,775.80 = 8,896.17 : x
  2. Step 2: Convert to fraction form
    13,609.16/18,775.80 = 8,896.17/x
  3. Step 3: Cross multiply
    13,609.16x = 18,775.80 × 8,896.17
  4. Step 4: Simplify right side
    13,609.16x = 167,032,708.69
  5. Step 5: Solve for x
    x = 167,032,708.69/13,609.16
  6. Step 6: Final answer
    x = 12,273.55

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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.