Home / 13,490.08-18,606.31-8,944.49

Finding the Fourth Proportional to 13,490.08, 18,606.31 and 8,944.49

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Solution

The fourth proportional to 13,490.08, 18,606.31 and 8,944.49 is: 12,336.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.08 : 18,606.31 = 8,944.49 : x
  2. Step 2: Convert to fraction form
    13,490.08/18,606.31 = 8,944.49/x
  3. Step 3: Cross multiply
    13,490.08x = 18,606.31 × 8,944.49
  4. Step 4: Simplify right side
    13,490.08x = 166,423,977.89
  5. Step 5: Solve for x
    x = 166,423,977.89/13,490.08
  6. Step 6: Final answer
    x = 12,336.77

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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.