Home / 12,245.12-16,898.28-6,656.12

Finding the Fourth Proportional to 12,245.12, 16,898.28 and 6,656.12

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Solution

The fourth proportional to 12,245.12, 16,898.28 and 6,656.12 is: 9,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.12 : 16,898.28 = 6,656.12 : x
  2. Step 2: Convert to fraction form
    12,245.12/16,898.28 = 6,656.12/x
  3. Step 3: Cross multiply
    12,245.12x = 16,898.28 × 6,656.12
  4. Step 4: Simplify right side
    12,245.12x = 112,476,979.47
  5. Step 5: Solve for x
    x = 112,476,979.47/12,245.12
  6. Step 6: Final answer
    x = 9,185.45

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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.