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Finding the Fourth Proportional to 13,840.56, 19,103.04 and 8,803.80

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Solution

The fourth proportional to 13,840.56, 19,103.04 and 8,803.80 is: 12,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.56 : 19,103.04 = 8,803.80 : x
  2. Step 2: Convert to fraction form
    13,840.56/19,103.04 = 8,803.80/x
  3. Step 3: Cross multiply
    13,840.56x = 19,103.04 × 8,803.80
  4. Step 4: Simplify right side
    13,840.56x = 168,179,343.55
  5. Step 5: Solve for x
    x = 168,179,343.55/13,840.56
  6. Step 6: Final answer
    x = 12,151.20

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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.