Home / 10,405.97-15,609.81-3,011.07

Finding the Fourth Proportional to 10,405.97, 15,609.81 and 3,011.07

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Solution

The fourth proportional to 10,405.97, 15,609.81 and 3,011.07 is: 4,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.97 : 15,609.81 = 3,011.07 : x
  2. Step 2: Convert to fraction form
    10,405.97/15,609.81 = 3,011.07/x
  3. Step 3: Cross multiply
    10,405.97x = 15,609.81 × 3,011.07
  4. Step 4: Simplify right side
    10,405.97x = 47,002,300.43
  5. Step 5: Solve for x
    x = 47,002,300.43/10,405.97
  6. Step 6: Final answer
    x = 4,516.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.