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Finding the Fourth Proportional to 40,457, 60,695.74 and 11,273

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Solution

The fourth proportional to 40,457, 60,695.74 and 11,273 is: 16,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,457 : 60,695.74 = 11,273 : x
  2. Step 2: Convert to fraction form
    40,457/60,695.74 = 11,273/x
  3. Step 3: Cross multiply
    40,457x = 60,695.74 × 11,273
  4. Step 4: Simplify right side
    40,457x = 684,223,077.02
  5. Step 5: Solve for x
    x = 684,223,077.02/40,457
  6. Step 6: Final answer
    x = 16,912.35

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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.