Home / 15,412.96-23,120.77-5,416.85

Finding the Fourth Proportional to 15,412.96, 23,120.77 and 5,416.85

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Solution

The fourth proportional to 15,412.96, 23,120.77 and 5,416.85 is: 8,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.96 : 23,120.77 = 5,416.85 : x
  2. Step 2: Convert to fraction form
    15,412.96/23,120.77 = 5,416.85/x
  3. Step 3: Cross multiply
    15,412.96x = 23,120.77 × 5,416.85
  4. Step 4: Simplify right side
    15,412.96x = 125,241,742.97
  5. Step 5: Solve for x
    x = 125,241,742.97/15,412.96
  6. Step 6: Final answer
    x = 8,125.74

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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.