Home / 8,790.75-12,131.24-6,554.54

Finding the Fourth Proportional to 8,790.75, 12,131.24 and 6,554.54

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Solution

The fourth proportional to 8,790.75, 12,131.24 and 6,554.54 is: 9,045.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.75 : 12,131.24 = 6,554.54 : x
  2. Step 2: Convert to fraction form
    8,790.75/12,131.24 = 6,554.54/x
  3. Step 3: Cross multiply
    8,790.75x = 12,131.24 × 6,554.54
  4. Step 4: Simplify right side
    8,790.75x = 79,514,695.38
  5. Step 5: Solve for x
    x = 79,514,695.38/8,790.75
  6. Step 6: Final answer
    x = 9,045.27

Related Problems

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Half scale
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Double scale
Find fourth proportional to 8,791.75, 12,132.62 and 6,555.54
Similar ratio
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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.