Home / 13,953.25-19,255.89-7,985.58

Finding the Fourth Proportional to 13,953.25, 19,255.89 and 7,985.58

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Solution

The fourth proportional to 13,953.25, 19,255.89 and 7,985.58 is: 11,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.25 : 19,255.89 = 7,985.58 : x
  2. Step 2: Convert to fraction form
    13,953.25/19,255.89 = 7,985.58/x
  3. Step 3: Cross multiply
    13,953.25x = 19,255.89 × 7,985.58
  4. Step 4: Simplify right side
    13,953.25x = 153,769,450.07
  5. Step 5: Solve for x
    x = 153,769,450.07/13,953.25
  6. Step 6: Final answer
    x = 11,020.33

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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.