Home / 10,365.75-15,551.06-3,440.25

Finding the Fourth Proportional to 10,365.75, 15,551.06 and 3,440.25

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Solution

The fourth proportional to 10,365.75, 15,551.06 and 3,440.25 is: 5,161.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,365.75 : 15,551.06 = 3,440.25 : x
  2. Step 2: Convert to fraction form
    10,365.75/15,551.06 = 3,440.25/x
  3. Step 3: Cross multiply
    10,365.75x = 15,551.06 × 3,440.25
  4. Step 4: Simplify right side
    10,365.75x = 53,499,516.96
  5. Step 5: Solve for x
    x = 53,499,516.96/10,365.75
  6. Step 6: Final answer
    x = 5,161.18

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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.