Home / 12,184.75-16,814.10-6,878.53

Finding the Fourth Proportional to 12,184.75, 16,814.10 and 6,878.53

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Solution

The fourth proportional to 12,184.75, 16,814.10 and 6,878.53 is: 9,491.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.75 : 16,814.10 = 6,878.53 : x
  2. Step 2: Convert to fraction form
    12,184.75/16,814.10 = 6,878.53/x
  3. Step 3: Cross multiply
    12,184.75x = 16,814.10 × 6,878.53
  4. Step 4: Simplify right side
    12,184.75x = 115,656,291.27
  5. Step 5: Solve for x
    x = 115,656,291.27/12,184.75
  6. Step 6: Final answer
    x = 9,491.89

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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.