Home / 19,647.18-27,113.55-11,149.86

Finding the Fourth Proportional to 19,647.18, 27,113.55 and 11,149.86

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Solution

The fourth proportional to 19,647.18, 27,113.55 and 11,149.86 is: 15,387.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.18 : 27,113.55 = 11,149.86 : x
  2. Step 2: Convert to fraction form
    19,647.18/27,113.55 = 11,149.86/x
  3. Step 3: Cross multiply
    19,647.18x = 27,113.55 × 11,149.86
  4. Step 4: Simplify right side
    19,647.18x = 302,312,286.60
  5. Step 5: Solve for x
    x = 302,312,286.60/19,647.18
  6. Step 6: Final answer
    x = 15,387.06

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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.