Home / 18,231.90-27,347.85-6,543.60

Finding the Fourth Proportional to 18,231.90, 27,347.85 and 6,543.60

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Solution

The fourth proportional to 18,231.90, 27,347.85 and 6,543.60 is: 9,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.90 : 27,347.85 = 6,543.60 : x
  2. Step 2: Convert to fraction form
    18,231.90/27,347.85 = 6,543.60/x
  3. Step 3: Cross multiply
    18,231.90x = 27,347.85 × 6,543.60
  4. Step 4: Simplify right side
    18,231.90x = 178,953,391.26
  5. Step 5: Solve for x
    x = 178,953,391.26/18,231.90
  6. Step 6: Final answer
    x = 9,815.40

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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.