Home / 7,993.76-11,031.46-4,457.21

Finding the Fourth Proportional to 7,993.76, 11,031.46 and 4,457.21

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Solution

The fourth proportional to 7,993.76, 11,031.46 and 4,457.21 is: 6,150.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.76 : 11,031.46 = 4,457.21 : x
  2. Step 2: Convert to fraction form
    7,993.76/11,031.46 = 4,457.21/x
  3. Step 3: Cross multiply
    7,993.76x = 11,031.46 × 4,457.21
  4. Step 4: Simplify right side
    7,993.76x = 49,169,550.26
  5. Step 5: Solve for x
    x = 49,169,550.26/7,993.76
  6. Step 6: Final answer
    x = 6,150.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.