Home / 14,122.62-19,485.18-8,455.14

Finding the Fourth Proportional to 14,122.62, 19,485.18 and 8,455.14

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Solution

The fourth proportional to 14,122.62, 19,485.18 and 8,455.14 is: 11,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.62 : 19,485.18 = 8,455.14 : x
  2. Step 2: Convert to fraction form
    14,122.62/19,485.18 = 8,455.14/x
  3. Step 3: Cross multiply
    14,122.62x = 19,485.18 × 8,455.14
  4. Step 4: Simplify right side
    14,122.62x = 164,749,924.83
  5. Step 5: Solve for x
    x = 164,749,924.83/14,122.62
  6. Step 6: Final answer
    x = 11,665.68

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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.