Home / 10,606.36-15,909.80-2,815.16

Finding the Fourth Proportional to 10,606.36, 15,909.80 and 2,815.16

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Solution

The fourth proportional to 10,606.36, 15,909.80 and 2,815.16 is: 4,222.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,606.36 : 15,909.80 = 2,815.16 : x
  2. Step 2: Convert to fraction form
    10,606.36/15,909.80 = 2,815.16/x
  3. Step 3: Cross multiply
    10,606.36x = 15,909.80 × 2,815.16
  4. Step 4: Simplify right side
    10,606.36x = 44,788,632.57
  5. Step 5: Solve for x
    x = 44,788,632.57/10,606.36
  6. Step 6: Final answer
    x = 4,222.81

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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.