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Finding the Fourth Proportional to 18,460.80, 25,474.50 and 10,077.30

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Solution

The fourth proportional to 18,460.80, 25,474.50 and 10,077.30 is: 13,905.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.80 : 25,474.50 = 10,077.30 : x
  2. Step 2: Convert to fraction form
    18,460.80/25,474.50 = 10,077.30/x
  3. Step 3: Cross multiply
    18,460.80x = 25,474.50 × 10,077.30
  4. Step 4: Simplify right side
    18,460.80x = 256,714,178.85
  5. Step 5: Solve for x
    x = 256,714,178.85/18,460.80
  6. Step 6: Final answer
    x = 13,905.91

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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.