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Finding the Fourth Proportional to 12,649.98, 17,440.74 and 10,372.93

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Solution

The fourth proportional to 12,649.98, 17,440.74 and 10,372.93 is: 14,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.98 : 17,440.74 = 10,372.93 : x
  2. Step 2: Convert to fraction form
    12,649.98/17,440.74 = 10,372.93/x
  3. Step 3: Cross multiply
    12,649.98x = 17,440.74 × 10,372.93
  4. Step 4: Simplify right side
    12,649.98x = 180,911,575.17
  5. Step 5: Solve for x
    x = 180,911,575.17/12,649.98
  6. Step 6: Final answer
    x = 14,301.33

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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.