Home / 12,179.08-16,810.38-6,877

Finding the Fourth Proportional to 12,179.08, 16,810.38 and 6,877

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Solution

The fourth proportional to 12,179.08, 16,810.38 and 6,877 is: 9,492.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.08 : 16,810.38 = 6,877 : x
  2. Step 2: Convert to fraction form
    12,179.08/16,810.38 = 6,877/x
  3. Step 3: Cross multiply
    12,179.08x = 16,810.38 × 6,877
  4. Step 4: Simplify right side
    12,179.08x = 115,604,983.26
  5. Step 5: Solve for x
    x = 115,604,983.26/12,179.08
  6. Step 6: Final answer
    x = 9,492.09

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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.