Home / 10,530.12-15,789.66-3,133.56

Finding the Fourth Proportional to 10,530.12, 15,789.66 and 3,133.56

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Solution

The fourth proportional to 10,530.12, 15,789.66 and 3,133.56 is: 4,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.12 : 15,789.66 = 3,133.56 : x
  2. Step 2: Convert to fraction form
    10,530.12/15,789.66 = 3,133.56/x
  3. Step 3: Cross multiply
    10,530.12x = 15,789.66 × 3,133.56
  4. Step 4: Simplify right side
    10,530.12x = 49,477,846.99
  5. Step 5: Solve for x
    x = 49,477,846.99/10,530.12
  6. Step 6: Final answer
    x = 4,698.70

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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.