Home / 12,838.56-19,245.07-8,934.76

Finding the Fourth Proportional to 12,838.56, 19,245.07 and 8,934.76

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Solution

The fourth proportional to 12,838.56, 19,245.07 and 8,934.76 is: 13,393.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838.56 : 19,245.07 = 8,934.76 : x
  2. Step 2: Convert to fraction form
    12,838.56/19,245.07 = 8,934.76/x
  3. Step 3: Cross multiply
    12,838.56x = 19,245.07 × 8,934.76
  4. Step 4: Simplify right side
    12,838.56x = 171,950,081.63
  5. Step 5: Solve for x
    x = 171,950,081.63/12,838.56
  6. Step 6: Final answer
    x = 13,393.25

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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.