Home / 15,006.72-20,710.44-8,719.56

Finding the Fourth Proportional to 15,006.72, 20,710.44 and 8,719.56

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Solution

The fourth proportional to 15,006.72, 20,710.44 and 8,719.56 is: 12,033.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006.72 : 20,710.44 = 8,719.56 : x
  2. Step 2: Convert to fraction form
    15,006.72/20,710.44 = 8,719.56/x
  3. Step 3: Cross multiply
    15,006.72x = 20,710.44 × 8,719.56
  4. Step 4: Simplify right side
    15,006.72x = 180,585,924.21
  5. Step 5: Solve for x
    x = 180,585,924.21/15,006.72
  6. Step 6: Final answer
    x = 12,033.67

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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.