Home / 12,005.80-16,567.14-6,699.88

Finding the Fourth Proportional to 12,005.80, 16,567.14 and 6,699.88

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Solution

The fourth proportional to 12,005.80, 16,567.14 and 6,699.88 is: 9,245.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.80 : 16,567.14 = 6,699.88 : x
  2. Step 2: Convert to fraction form
    12,005.80/16,567.14 = 6,699.88/x
  3. Step 3: Cross multiply
    12,005.80x = 16,567.14 × 6,699.88
  4. Step 4: Simplify right side
    12,005.80x = 110,997,849.94
  5. Step 5: Solve for x
    x = 110,997,849.94/12,005.80
  6. Step 6: Final answer
    x = 9,245.35

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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.