Home / 12,738.15-19,107.23-9,822.15

Finding the Fourth Proportional to 12,738.15, 19,107.23 and 9,822.15

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Solution

The fourth proportional to 12,738.15, 19,107.23 and 9,822.15 is: 14,733.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.15 : 19,107.23 = 9,822.15 : x
  2. Step 2: Convert to fraction form
    12,738.15/19,107.23 = 9,822.15/x
  3. Step 3: Cross multiply
    12,738.15x = 19,107.23 × 9,822.15
  4. Step 4: Simplify right side
    12,738.15x = 187,674,030.03
  5. Step 5: Solve for x
    x = 187,674,030.03/12,738.15
  6. Step 6: Final answer
    x = 14,733.23

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Similar ratio
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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.