Home / 12,245.85-16,899.40-6,656.85

Finding the Fourth Proportional to 12,245.85, 16,899.40 and 6,656.85

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Solution

The fourth proportional to 12,245.85, 16,899.40 and 6,656.85 is: 9,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.85 : 16,899.40 = 6,656.85 : x
  2. Step 2: Convert to fraction form
    12,245.85/16,899.40 = 6,656.85/x
  3. Step 3: Cross multiply
    12,245.85x = 16,899.40 × 6,656.85
  4. Step 4: Simplify right side
    12,245.85x = 112,496,686.39
  5. Step 5: Solve for x
    x = 112,496,686.39/12,245.85
  6. Step 6: Final answer
    x = 9,186.52

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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.