Home / 13,780.75-19,017.57-7,493.26

Finding the Fourth Proportional to 13,780.75, 19,017.57 and 7,493.26

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Solution

The fourth proportional to 13,780.75, 19,017.57 and 7,493.26 is: 10,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.75 : 19,017.57 = 7,493.26 : x
  2. Step 2: Convert to fraction form
    13,780.75/19,017.57 = 7,493.26/x
  3. Step 3: Cross multiply
    13,780.75x = 19,017.57 × 7,493.26
  4. Step 4: Simplify right side
    13,780.75x = 142,503,596.58
  5. Step 5: Solve for x
    x = 142,503,596.58/13,780.75
  6. Step 6: Final answer
    x = 10,340.77

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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.