Home / 10,645.12-15,969.57-3,624.78

Finding the Fourth Proportional to 10,645.12, 15,969.57 and 3,624.78

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Solution

The fourth proportional to 10,645.12, 15,969.57 and 3,624.78 is: 5,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.12 : 15,969.57 = 3,624.78 : x
  2. Step 2: Convert to fraction form
    10,645.12/15,969.57 = 3,624.78/x
  3. Step 3: Cross multiply
    10,645.12x = 15,969.57 × 3,624.78
  4. Step 4: Simplify right side
    10,645.12x = 57,886,177.94
  5. Step 5: Solve for x
    x = 57,886,177.94/10,645.12
  6. Step 6: Final answer
    x = 5,437.81

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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.