Home / 15,007.96-20,710.38-8,719.84

Finding the Fourth Proportional to 15,007.96, 20,710.38 and 8,719.84

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Solution

The fourth proportional to 15,007.96, 20,710.38 and 8,719.84 is: 12,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.96 : 20,710.38 = 8,719.84 : x
  2. Step 2: Convert to fraction form
    15,007.96/20,710.38 = 8,719.84/x
  3. Step 3: Cross multiply
    15,007.96x = 20,710.38 × 8,719.84
  4. Step 4: Simplify right side
    15,007.96x = 180,591,199.94
  5. Step 5: Solve for x
    x = 180,591,199.94/15,007.96
  6. Step 6: Final answer
    x = 12,033.03

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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.