Home / 13,590.27-18,755.43-7,622.31

Finding the Fourth Proportional to 13,590.27, 18,755.43 and 7,622.31

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Solution

The fourth proportional to 13,590.27, 18,755.43 and 7,622.31 is: 10,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.27 : 18,755.43 = 7,622.31 : x
  2. Step 2: Convert to fraction form
    13,590.27/18,755.43 = 7,622.31/x
  3. Step 3: Cross multiply
    13,590.27x = 18,755.43 × 7,622.31
  4. Step 4: Simplify right side
    13,590.27x = 142,959,701.64
  5. Step 5: Solve for x
    x = 142,959,701.64/13,590.27
  6. Step 6: Final answer
    x = 10,519.27

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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.