Home / 13,780.71-19,017.24-7,493.09

Finding the Fourth Proportional to 13,780.71, 19,017.24 and 7,493.09

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Solution

The fourth proportional to 13,780.71, 19,017.24 and 7,493.09 is: 10,340.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.71 : 19,017.24 = 7,493.09 : x
  2. Step 2: Convert to fraction form
    13,780.71/19,017.24 = 7,493.09/x
  3. Step 3: Cross multiply
    13,780.71x = 19,017.24 × 7,493.09
  4. Step 4: Simplify right side
    13,780.71x = 142,497,795.79
  5. Step 5: Solve for x
    x = 142,497,795.79/13,780.71
  6. Step 6: Final answer
    x = 10,340.38

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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.