Home / 12,261.25-16,919.36-6,882.45

Finding the Fourth Proportional to 12,261.25, 16,919.36 and 6,882.45

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Solution

The fourth proportional to 12,261.25, 16,919.36 and 6,882.45 is: 9,497.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.25 : 16,919.36 = 6,882.45 : x
  2. Step 2: Convert to fraction form
    12,261.25/16,919.36 = 6,882.45/x
  3. Step 3: Cross multiply
    12,261.25x = 16,919.36 × 6,882.45
  4. Step 4: Simplify right side
    12,261.25x = 116,446,702.19
  5. Step 5: Solve for x
    x = 116,446,702.19/12,261.25
  6. Step 6: Final answer
    x = 9,497.13

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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.