Home / 13,812.07-19,067.88-10,780.69

Finding the Fourth Proportional to 13,812.07, 19,067.88 and 10,780.69

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Solution

The fourth proportional to 13,812.07, 19,067.88 and 10,780.69 is: 14,882.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.07 : 19,067.88 = 10,780.69 : x
  2. Step 2: Convert to fraction form
    13,812.07/19,067.88 = 10,780.69/x
  3. Step 3: Cross multiply
    13,812.07x = 19,067.88 × 10,780.69
  4. Step 4: Simplify right side
    13,812.07x = 205,564,903.24
  5. Step 5: Solve for x
    x = 205,564,903.24/13,812.07
  6. Step 6: Final answer
    x = 14,882.99

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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.