Home / 10,427.89-15,636.71-3,406.59

Finding the Fourth Proportional to 10,427.89, 15,636.71 and 3,406.59

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Solution

The fourth proportional to 10,427.89, 15,636.71 and 3,406.59 is: 5,108.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.89 : 15,636.71 = 3,406.59 : x
  2. Step 2: Convert to fraction form
    10,427.89/15,636.71 = 3,406.59/x
  3. Step 3: Cross multiply
    10,427.89x = 15,636.71 × 3,406.59
  4. Step 4: Simplify right side
    10,427.89x = 53,267,920.03
  5. Step 5: Solve for x
    x = 53,267,920.03/10,427.89
  6. Step 6: Final answer
    x = 5,108.22

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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.