Home / 12,908.51-17,812.67-9,133.88

Finding the Fourth Proportional to 12,908.51, 17,812.67 and 9,133.88

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Solution

The fourth proportional to 12,908.51, 17,812.67 and 9,133.88 is: 12,604.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908.51 : 17,812.67 = 9,133.88 : x
  2. Step 2: Convert to fraction form
    12,908.51/17,812.67 = 9,133.88/x
  3. Step 3: Cross multiply
    12,908.51x = 17,812.67 × 9,133.88
  4. Step 4: Simplify right side
    12,908.51x = 162,698,819.95
  5. Step 5: Solve for x
    x = 162,698,819.95/12,908.51
  6. Step 6: Final answer
    x = 12,604.00

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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.