Home / 12,306.30-17,004.90-8,763.36

Finding the Fourth Proportional to 12,306.30, 17,004.90 and 8,763.36

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Solution

The fourth proportional to 12,306.30, 17,004.90 and 8,763.36 is: 12,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.30 : 17,004.90 = 8,763.36 : x
  2. Step 2: Convert to fraction form
    12,306.30/17,004.90 = 8,763.36/x
  3. Step 3: Cross multiply
    12,306.30x = 17,004.90 × 8,763.36
  4. Step 4: Simplify right side
    12,306.30x = 149,020,060.46
  5. Step 5: Solve for x
    x = 149,020,060.46/12,306.30
  6. Step 6: Final answer
    x = 12,109.25

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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.