Home / 10,145.48-15,221.03-4,225.15

Finding the Fourth Proportional to 10,145.48, 15,221.03 and 4,225.15

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Solution

The fourth proportional to 10,145.48, 15,221.03 and 4,225.15 is: 6,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.48 : 15,221.03 = 4,225.15 : x
  2. Step 2: Convert to fraction form
    10,145.48/15,221.03 = 4,225.15/x
  3. Step 3: Cross multiply
    10,145.48x = 15,221.03 × 4,225.15
  4. Step 4: Simplify right side
    10,145.48x = 64,311,148.65
  5. Step 5: Solve for x
    x = 64,311,148.65/10,145.48
  6. Step 6: Final answer
    x = 6,338.90

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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.