Home / 11,218.29-16,828.92-8,590.79

Finding the Fourth Proportional to 11,218.29, 16,828.92 and 8,590.79

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Solution

The fourth proportional to 11,218.29, 16,828.92 and 8,590.79 is: 12,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.29 : 16,828.92 = 8,590.79 : x
  2. Step 2: Convert to fraction form
    11,218.29/16,828.92 = 8,590.79/x
  3. Step 3: Cross multiply
    11,218.29x = 16,828.92 × 8,590.79
  4. Step 4: Simplify right side
    11,218.29x = 144,573,633.50
  5. Step 5: Solve for x
    x = 144,573,633.50/11,218.29
  6. Step 6: Final answer
    x = 12,887.31

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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.