Home / 12,402.72-18,613.44-6,560.64

Finding the Fourth Proportional to 12,402.72, 18,613.44 and 6,560.64

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Solution

The fourth proportional to 12,402.72, 18,613.44 and 6,560.64 is: 9,845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.72 : 18,613.44 = 6,560.64 : x
  2. Step 2: Convert to fraction form
    12,402.72/18,613.44 = 6,560.64/x
  3. Step 3: Cross multiply
    12,402.72x = 18,613.44 × 6,560.64
  4. Step 4: Simplify right side
    12,402.72x = 122,116,079.00
  5. Step 5: Solve for x
    x = 122,116,079.00/12,402.72
  6. Step 6: Final answer
    x = 9,845.91

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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.