Home / 11,948.45-16,490.89-6,915.75

Finding the Fourth Proportional to 11,948.45, 16,490.89 and 6,915.75

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Solution

The fourth proportional to 11,948.45, 16,490.89 and 6,915.75 is: 9,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.45 : 16,490.89 = 6,915.75 : x
  2. Step 2: Convert to fraction form
    11,948.45/16,490.89 = 6,915.75/x
  3. Step 3: Cross multiply
    11,948.45x = 16,490.89 × 6,915.75
  4. Step 4: Simplify right side
    11,948.45x = 114,046,872.52
  5. Step 5: Solve for x
    x = 114,046,872.52/11,948.45
  6. Step 6: Final answer
    x = 9,544.91

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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.