Home / 9,827.60-14,731.80-8,790.80

Finding the Fourth Proportional to 9,827.60, 14,731.80 and 8,790.80

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Solution

The fourth proportional to 9,827.60, 14,731.80 and 8,790.80 is: 13,177.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,827.60 : 14,731.80 = 8,790.80 : x
  2. Step 2: Convert to fraction form
    9,827.60/14,731.80 = 8,790.80/x
  3. Step 3: Cross multiply
    9,827.60x = 14,731.80 × 8,790.80
  4. Step 4: Simplify right side
    9,827.60x = 129,504,307.44
  5. Step 5: Solve for x
    x = 129,504,307.44/9,827.60
  6. Step 6: Final answer
    x = 13,177.61

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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.