Home / 18,138.83-25,034.02-10,181.49

Finding the Fourth Proportional to 18,138.83, 25,034.02 and 10,181.49

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Solution

The fourth proportional to 18,138.83, 25,034.02 and 10,181.49 is: 14,051.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.83 : 25,034.02 = 10,181.49 : x
  2. Step 2: Convert to fraction form
    18,138.83/25,034.02 = 10,181.49/x
  3. Step 3: Cross multiply
    18,138.83x = 25,034.02 × 10,181.49
  4. Step 4: Simplify right side
    18,138.83x = 254,883,624.29
  5. Step 5: Solve for x
    x = 254,883,624.29/18,138.83
  6. Step 6: Final answer
    x = 14,051.82

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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.