Home / 14,171.99-21,225.58-6,781.64

Finding the Fourth Proportional to 14,171.99, 21,225.58 and 6,781.64

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Solution

The fourth proportional to 14,171.99, 21,225.58 and 6,781.64 is: 10,156.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.99 : 21,225.58 = 6,781.64 : x
  2. Step 2: Convert to fraction form
    14,171.99/21,225.58 = 6,781.64/x
  3. Step 3: Cross multiply
    14,171.99x = 21,225.58 × 6,781.64
  4. Step 4: Simplify right side
    14,171.99x = 143,944,119.27
  5. Step 5: Solve for x
    x = 143,944,119.27/14,171.99
  6. Step 6: Final answer
    x = 10,156.95

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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.