Home / 13,027.92-17,980.83-7,725.66

Finding the Fourth Proportional to 13,027.92, 17,980.83 and 7,725.66

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Solution

The fourth proportional to 13,027.92, 17,980.83 and 7,725.66 is: 10,662.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,027.92 : 17,980.83 = 7,725.66 : x
  2. Step 2: Convert to fraction form
    13,027.92/17,980.83 = 7,725.66/x
  3. Step 3: Cross multiply
    13,027.92x = 17,980.83 × 7,725.66
  4. Step 4: Simplify right side
    13,027.92x = 138,913,779.10
  5. Step 5: Solve for x
    x = 138,913,779.10/13,027.92
  6. Step 6: Final answer
    x = 10,662.77

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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.