Home / 19,876.26-27,423.24-11,915.58

Finding the Fourth Proportional to 19,876.26, 27,423.24 and 11,915.58

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Solution

The fourth proportional to 19,876.26, 27,423.24 and 11,915.58 is: 16,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.26 : 27,423.24 = 11,915.58 : x
  2. Step 2: Convert to fraction form
    19,876.26/27,423.24 = 11,915.58/x
  3. Step 3: Cross multiply
    19,876.26x = 27,423.24 × 11,915.58
  4. Step 4: Simplify right side
    19,876.26x = 326,763,810.08
  5. Step 5: Solve for x
    x = 326,763,810.08/19,876.26
  6. Step 6: Final answer
    x = 16,439.90

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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.