Home / 18,142.56-27,219.72-8,902.08

Finding the Fourth Proportional to 18,142.56, 27,219.72 and 8,902.08

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Solution

The fourth proportional to 18,142.56, 27,219.72 and 8,902.08 is: 13,356.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.56 : 27,219.72 = 8,902.08 : x
  2. Step 2: Convert to fraction form
    18,142.56/27,219.72 = 8,902.08/x
  3. Step 3: Cross multiply
    18,142.56x = 27,219.72 × 8,902.08
  4. Step 4: Simplify right side
    18,142.56x = 242,312,125.02
  5. Step 5: Solve for x
    x = 242,312,125.02/18,142.56
  6. Step 6: Final answer
    x = 13,356.01

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1.5x scale

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.