Home / 13,160.16-19,749.96-9,879.66

Finding the Fourth Proportional to 13,160.16, 19,749.96 and 9,879.66

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Solution

The fourth proportional to 13,160.16, 19,749.96 and 9,879.66 is: 14,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.16 : 19,749.96 = 9,879.66 : x
  2. Step 2: Convert to fraction form
    13,160.16/19,749.96 = 9,879.66/x
  3. Step 3: Cross multiply
    13,160.16x = 19,749.96 × 9,879.66
  4. Step 4: Simplify right side
    13,160.16x = 195,122,889.81
  5. Step 5: Solve for x
    x = 195,122,889.81/13,160.16
  6. Step 6: Final answer
    x = 14,826.79

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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.