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Finding the Fourth Proportional to 18,015.54, 24,851.10 and 10,840.50

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Solution

The fourth proportional to 18,015.54, 24,851.10 and 10,840.50 is: 14,953.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.54 : 24,851.10 = 10,840.50 : x
  2. Step 2: Convert to fraction form
    18,015.54/24,851.10 = 10,840.50/x
  3. Step 3: Cross multiply
    18,015.54x = 24,851.10 × 10,840.50
  4. Step 4: Simplify right side
    18,015.54x = 269,398,349.55
  5. Step 5: Solve for x
    x = 269,398,349.55/18,015.54
  6. Step 6: Final answer
    x = 14,953.66

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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.