Home / 10,427.76-15,643.48-3,406.48

Finding the Fourth Proportional to 10,427.76, 15,643.48 and 3,406.48

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Solution

The fourth proportional to 10,427.76, 15,643.48 and 3,406.48 is: 5,110.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.76 : 15,643.48 = 3,406.48 : x
  2. Step 2: Convert to fraction form
    10,427.76/15,643.48 = 3,406.48/x
  3. Step 3: Cross multiply
    10,427.76x = 15,643.48 × 3,406.48
  4. Step 4: Simplify right side
    10,427.76x = 53,289,201.75
  5. Step 5: Solve for x
    x = 53,289,201.75/10,427.76
  6. Step 6: Final answer
    x = 5,110.32

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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.