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Finding the Fourth Proportional to 18,485.58, 25,510.02 and 10,102.08

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Solution

The fourth proportional to 18,485.58, 25,510.02 and 10,102.08 is: 13,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.58 : 25,510.02 = 10,102.08 : x
  2. Step 2: Convert to fraction form
    18,485.58/25,510.02 = 10,102.08/x
  3. Step 3: Cross multiply
    18,485.58x = 25,510.02 × 10,102.08
  4. Step 4: Simplify right side
    18,485.58x = 257,704,262.84
  5. Step 5: Solve for x
    x = 257,704,262.84/18,485.58
  6. Step 6: Final answer
    x = 13,940.83

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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.