Home / 14,225.20-19,626.82-9,189.64

Finding the Fourth Proportional to 14,225.20, 19,626.82 and 9,189.64

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Solution

The fourth proportional to 14,225.20, 19,626.82 and 9,189.64 is: 12,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,225.20 : 19,626.82 = 9,189.64 : x
  2. Step 2: Convert to fraction form
    14,225.20/19,626.82 = 9,189.64/x
  3. Step 3: Cross multiply
    14,225.20x = 19,626.82 × 9,189.64
  4. Step 4: Simplify right side
    14,225.20x = 180,363,410.14
  5. Step 5: Solve for x
    x = 180,363,410.14/14,225.20
  6. Step 6: Final answer
    x = 12,679.15

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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.