Home / 15,014.34-20,722.26-8,730.36

Finding the Fourth Proportional to 15,014.34, 20,722.26 and 8,730.36

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Solution

The fourth proportional to 15,014.34, 20,722.26 and 8,730.36 is: 12,049.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014.34 : 20,722.26 = 8,730.36 : x
  2. Step 2: Convert to fraction form
    15,014.34/20,722.26 = 8,730.36/x
  3. Step 3: Cross multiply
    15,014.34x = 20,722.26 × 8,730.36
  4. Step 4: Simplify right side
    15,014.34x = 180,912,789.81
  5. Step 5: Solve for x
    x = 180,912,789.81/15,014.34
  6. Step 6: Final answer
    x = 12,049.33

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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.