Home / 15,256.85-21,036.51-12,229.54

Finding the Fourth Proportional to 15,256.85, 21,036.51 and 12,229.54

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Solution

The fourth proportional to 15,256.85, 21,036.51 and 12,229.54 is: 16,862.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.85 : 21,036.51 = 12,229.54 : x
  2. Step 2: Convert to fraction form
    15,256.85/21,036.51 = 12,229.54/x
  3. Step 3: Cross multiply
    15,256.85x = 21,036.51 × 12,229.54
  4. Step 4: Simplify right side
    15,256.85x = 257,266,787.91
  5. Step 5: Solve for x
    x = 257,266,787.91/15,256.85
  6. Step 6: Final answer
    x = 16,862.38

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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.