Home / 12,302.21-16,977.99-6,996.71

Finding the Fourth Proportional to 12,302.21, 16,977.99 and 6,996.71

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Solution

The fourth proportional to 12,302.21, 16,977.99 and 6,996.71 is: 9,655.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302.21 : 16,977.99 = 6,996.71 : x
  2. Step 2: Convert to fraction form
    12,302.21/16,977.99 = 6,996.71/x
  3. Step 3: Cross multiply
    12,302.21x = 16,977.99 × 6,996.71
  4. Step 4: Simplify right side
    12,302.21x = 118,789,987.52
  5. Step 5: Solve for x
    x = 118,789,987.52/12,302.21
  6. Step 6: Final answer
    x = 9,655.99

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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.