Home / 10,863.52-14,992.40-6,147.80

Finding the Fourth Proportional to 10,863.52, 14,992.40 and 6,147.80

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Solution

The fourth proportional to 10,863.52, 14,992.40 and 6,147.80 is: 8,484.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.52 : 14,992.40 = 6,147.80 : x
  2. Step 2: Convert to fraction form
    10,863.52/14,992.40 = 6,147.80/x
  3. Step 3: Cross multiply
    10,863.52x = 14,992.40 × 6,147.80
  4. Step 4: Simplify right side
    10,863.52x = 92,170,276.72
  5. Step 5: Solve for x
    x = 92,170,276.72/10,863.52
  6. Step 6: Final answer
    x = 8,484.38

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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.