Home / 18,125.19-27,188.10-4,977.47

Finding the Fourth Proportional to 18,125.19, 27,188.10 and 4,977.47

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Solution

The fourth proportional to 18,125.19, 27,188.10 and 4,977.47 is: 7,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.19 : 27,188.10 = 4,977.47 : x
  2. Step 2: Convert to fraction form
    18,125.19/27,188.10 = 4,977.47/x
  3. Step 3: Cross multiply
    18,125.19x = 27,188.10 × 4,977.47
  4. Step 4: Simplify right side
    18,125.19x = 135,328,020.08
  5. Step 5: Solve for x
    x = 135,328,020.08/18,125.19
  6. Step 6: Final answer
    x = 7,466.30

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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.