Home / 14,239.35-19,649.43-7,865.79

Finding the Fourth Proportional to 14,239.35, 19,649.43 and 7,865.79

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Solution

The fourth proportional to 14,239.35, 19,649.43 and 7,865.79 is: 10,854.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.35 : 19,649.43 = 7,865.79 : x
  2. Step 2: Convert to fraction form
    14,239.35/19,649.43 = 7,865.79/x
  3. Step 3: Cross multiply
    14,239.35x = 19,649.43 × 7,865.79
  4. Step 4: Simplify right side
    14,239.35x = 154,558,290.00
  5. Step 5: Solve for x
    x = 154,558,290.00/14,239.35
  6. Step 6: Final answer
    x = 10,854.31

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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.