Home / 10,087.85-15,134.21-3,162.35

Finding the Fourth Proportional to 10,087.85, 15,134.21 and 3,162.35

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Solution

The fourth proportional to 10,087.85, 15,134.21 and 3,162.35 is: 4,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.85 : 15,134.21 = 3,162.35 : x
  2. Step 2: Convert to fraction form
    10,087.85/15,134.21 = 3,162.35/x
  3. Step 3: Cross multiply
    10,087.85x = 15,134.21 × 3,162.35
  4. Step 4: Simplify right side
    10,087.85x = 47,859,668.99
  5. Step 5: Solve for x
    x = 47,859,668.99/10,087.85
  6. Step 6: Final answer
    x = 4,744.29

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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.