Home / 13,644.71-18,828.68-7,675.22

Finding the Fourth Proportional to 13,644.71, 18,828.68 and 7,675.22

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Solution

The fourth proportional to 13,644.71, 18,828.68 and 7,675.22 is: 10,591.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.71 : 18,828.68 = 7,675.22 : x
  2. Step 2: Convert to fraction form
    13,644.71/18,828.68 = 7,675.22/x
  3. Step 3: Cross multiply
    13,644.71x = 18,828.68 × 7,675.22
  4. Step 4: Simplify right side
    13,644.71x = 144,514,128.79
  5. Step 5: Solve for x
    x = 144,514,128.79/13,644.71
  6. Step 6: Final answer
    x = 10,591.22

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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.