Home / 12,261.24-16,915.50-8,537.40

Finding the Fourth Proportional to 12,261.24, 16,915.50 and 8,537.40

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Solution

The fourth proportional to 12,261.24, 16,915.50 and 8,537.40 is: 11,778.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.24 : 16,915.50 = 8,537.40 : x
  2. Step 2: Convert to fraction form
    12,261.24/16,915.50 = 8,537.40/x
  3. Step 3: Cross multiply
    12,261.24x = 16,915.50 × 8,537.40
  4. Step 4: Simplify right side
    12,261.24x = 144,414,389.70
  5. Step 5: Solve for x
    x = 144,414,389.70/12,261.24
  6. Step 6: Final answer
    x = 11,778.12

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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.