Home / 14,670.72-20,221.92-12,013.44

Finding the Fourth Proportional to 14,670.72, 20,221.92 and 12,013.44

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Solution

The fourth proportional to 14,670.72, 20,221.92 and 12,013.44 is: 16,559.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.72 : 20,221.92 = 12,013.44 : x
  2. Step 2: Convert to fraction form
    14,670.72/20,221.92 = 12,013.44/x
  3. Step 3: Cross multiply
    14,670.72x = 20,221.92 × 12,013.44
  4. Step 4: Simplify right side
    14,670.72x = 242,934,822.60
  5. Step 5: Solve for x
    x = 242,934,822.60/14,670.72
  6. Step 6: Final answer
    x = 16,559.16

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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.