Home / 18,126.19-27,186.31-4,975.48

Finding the Fourth Proportional to 18,126.19, 27,186.31 and 4,975.48

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Solution

The fourth proportional to 18,126.19, 27,186.31 and 4,975.48 is: 7,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.19 : 27,186.31 = 4,975.48 : x
  2. Step 2: Convert to fraction form
    18,126.19/27,186.31 = 4,975.48/x
  3. Step 3: Cross multiply
    18,126.19x = 27,186.31 × 4,975.48
  4. Step 4: Simplify right side
    18,126.19x = 135,264,941.68
  5. Step 5: Solve for x
    x = 135,264,941.68/18,126.19
  6. Step 6: Final answer
    x = 7,462.40

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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.