Home / 13,962.08-20,915.44-8,416.88

Finding the Fourth Proportional to 13,962.08, 20,915.44 and 8,416.88

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Solution

The fourth proportional to 13,962.08, 20,915.44 and 8,416.88 is: 12,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.08 : 20,915.44 = 8,416.88 : x
  2. Step 2: Convert to fraction form
    13,962.08/20,915.44 = 8,416.88/x
  3. Step 3: Cross multiply
    13,962.08x = 20,915.44 × 8,416.88
  4. Step 4: Simplify right side
    13,962.08x = 176,042,748.63
  5. Step 5: Solve for x
    x = 176,042,748.63/13,962.08
  6. Step 6: Final answer
    x = 12,608.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.