Home / 15,134.93-20,878.42-8,843.66

Finding the Fourth Proportional to 15,134.93, 20,878.42 and 8,843.66

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Solution

The fourth proportional to 15,134.93, 20,878.42 and 8,843.66 is: 12,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.93 : 20,878.42 = 8,843.66 : x
  2. Step 2: Convert to fraction form
    15,134.93/20,878.42 = 8,843.66/x
  3. Step 3: Cross multiply
    15,134.93x = 20,878.42 × 8,843.66
  4. Step 4: Simplify right side
    15,134.93x = 184,641,647.82
  5. Step 5: Solve for x
    x = 184,641,647.82/15,134.93
  6. Step 6: Final answer
    x = 12,199.70

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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.