Home / 13,665.17-20,507.74-8,746.85

Finding the Fourth Proportional to 13,665.17, 20,507.74 and 8,746.85

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Solution

The fourth proportional to 13,665.17, 20,507.74 and 8,746.85 is: 13,126.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.17 : 20,507.74 = 8,746.85 : x
  2. Step 2: Convert to fraction form
    13,665.17/20,507.74 = 8,746.85/x
  3. Step 3: Cross multiply
    13,665.17x = 20,507.74 × 8,746.85
  4. Step 4: Simplify right side
    13,665.17x = 179,378,125.62
  5. Step 5: Solve for x
    x = 179,378,125.62/13,665.17
  6. Step 6: Final answer
    x = 13,126.67

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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.