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Finding the Fourth Proportional to 18,012.78, 24,860.93 and 10,457.91

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Solution

The fourth proportional to 18,012.78, 24,860.93 and 10,457.91 is: 14,433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.78 : 24,860.93 = 10,457.91 : x
  2. Step 2: Convert to fraction form
    18,012.78/24,860.93 = 10,457.91/x
  3. Step 3: Cross multiply
    18,012.78x = 24,860.93 × 10,457.91
  4. Step 4: Simplify right side
    18,012.78x = 259,993,316.17
  5. Step 5: Solve for x
    x = 259,993,316.17/18,012.78
  6. Step 6: Final answer
    x = 14,433.83

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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.