Home / 13,730.82-18,943.17-8,956.37

Finding the Fourth Proportional to 13,730.82, 18,943.17 and 8,956.37

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Solution

The fourth proportional to 13,730.82, 18,943.17 and 8,956.37 is: 12,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.82 : 18,943.17 = 8,956.37 : x
  2. Step 2: Convert to fraction form
    13,730.82/18,943.17 = 8,956.37/x
  3. Step 3: Cross multiply
    13,730.82x = 18,943.17 × 8,956.37
  4. Step 4: Simplify right side
    13,730.82x = 169,662,053.26
  5. Step 5: Solve for x
    x = 169,662,053.26/13,730.82
  6. Step 6: Final answer
    x = 12,356.30

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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.