Home / 13,909.92-19,193.52-8,878.30

Finding the Fourth Proportional to 13,909.92, 19,193.52 and 8,878.30

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Solution

The fourth proportional to 13,909.92, 19,193.52 and 8,878.30 is: 12,250.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.92 : 19,193.52 = 8,878.30 : x
  2. Step 2: Convert to fraction form
    13,909.92/19,193.52 = 8,878.30/x
  3. Step 3: Cross multiply
    13,909.92x = 19,193.52 × 8,878.30
  4. Step 4: Simplify right side
    13,909.92x = 170,405,828.62
  5. Step 5: Solve for x
    x = 170,405,828.62/13,909.92
  6. Step 6: Final answer
    x = 12,250.67

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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.