Home / 18,438.10-27,657.15-6,126.10

Finding the Fourth Proportional to 18,438.10, 27,657.15 and 6,126.10

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Solution

The fourth proportional to 18,438.10, 27,657.15 and 6,126.10 is: 9,189.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.10 : 27,657.15 = 6,126.10 : x
  2. Step 2: Convert to fraction form
    18,438.10/27,657.15 = 6,126.10/x
  3. Step 3: Cross multiply
    18,438.10x = 27,657.15 × 6,126.10
  4. Step 4: Simplify right side
    18,438.10x = 169,430,466.62
  5. Step 5: Solve for x
    x = 169,430,466.62/18,438.10
  6. Step 6: Final answer
    x = 9,189.15

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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.