Home / 12,235.10-16,884.45-6,646.10

Finding the Fourth Proportional to 12,235.10, 16,884.45 and 6,646.10

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Solution

The fourth proportional to 12,235.10, 16,884.45 and 6,646.10 is: 9,171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.10 : 16,884.45 = 6,646.10 : x
  2. Step 2: Convert to fraction form
    12,235.10/16,884.45 = 6,646.10/x
  3. Step 3: Cross multiply
    12,235.10x = 16,884.45 × 6,646.10
  4. Step 4: Simplify right side
    12,235.10x = 112,215,658.72
  5. Step 5: Solve for x
    x = 112,215,658.72/12,235.10
  6. Step 6: Final answer
    x = 9,171.62

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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.