Home / 8,087.79-11,147.72-5,565.63

Finding the Fourth Proportional to 8,087.79, 11,147.72 and 5,565.63

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Solution

The fourth proportional to 8,087.79, 11,147.72 and 5,565.63 is: 7,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.79 : 11,147.72 = 5,565.63 : x
  2. Step 2: Convert to fraction form
    8,087.79/11,147.72 = 5,565.63/x
  3. Step 3: Cross multiply
    8,087.79x = 11,147.72 × 5,565.63
  4. Step 4: Simplify right side
    8,087.79x = 62,044,057.04
  5. Step 5: Solve for x
    x = 62,044,057.04/8,087.79
  6. Step 6: Final answer
    x = 7,671.32

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Half scale
Find fourth proportional to 16,175.58, 22,295.43 and 11,131.26
Double scale
Find fourth proportional to 8,088.79, 11,149.09 and 5,566.63
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.