Home / 12,118.32-16,724.16-6,814.08

Finding the Fourth Proportional to 12,118.32, 16,724.16 and 6,814.08

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Solution

The fourth proportional to 12,118.32, 16,724.16 and 6,814.08 is: 9,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.32 : 16,724.16 = 6,814.08 : x
  2. Step 2: Convert to fraction form
    12,118.32/16,724.16 = 6,814.08/x
  3. Step 3: Cross multiply
    12,118.32x = 16,724.16 × 6,814.08
  4. Step 4: Simplify right side
    12,118.32x = 113,959,764.17
  5. Step 5: Solve for x
    x = 113,959,764.17/12,118.32
  6. Step 6: Final answer
    x = 9,403.92

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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.