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Finding the Fourth Proportional to 12,649.98, 17,461.02 and 7,343.76

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Solution

The fourth proportional to 12,649.98, 17,461.02 and 7,343.76 is: 10,136.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.98 : 17,461.02 = 7,343.76 : x
  2. Step 2: Convert to fraction form
    12,649.98/17,461.02 = 7,343.76/x
  3. Step 3: Cross multiply
    12,649.98x = 17,461.02 × 7,343.76
  4. Step 4: Simplify right side
    12,649.98x = 128,229,540.24
  5. Step 5: Solve for x
    x = 128,229,540.24/12,649.98
  6. Step 6: Final answer
    x = 10,136.74

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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.