Home / 13,875.14-19,143.09-7,824.62

Finding the Fourth Proportional to 13,875.14, 19,143.09 and 7,824.62

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Solution

The fourth proportional to 13,875.14, 19,143.09 and 7,824.62 is: 10,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.14 : 19,143.09 = 7,824.62 : x
  2. Step 2: Convert to fraction form
    13,875.14/19,143.09 = 7,824.62/x
  3. Step 3: Cross multiply
    13,875.14x = 19,143.09 × 7,824.62
  4. Step 4: Simplify right side
    13,875.14x = 149,787,404.88
  5. Step 5: Solve for x
    x = 149,787,404.88/13,875.14
  6. Step 6: Final answer
    x = 10,795.38

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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.