Home / 8,567.82-12,782.60-7,632.87

Finding the Fourth Proportional to 8,567.82, 12,782.60 and 7,632.87

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Solution

The fourth proportional to 8,567.82, 12,782.60 and 7,632.87 is: 11,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.82 : 12,782.60 = 7,632.87 : x
  2. Step 2: Convert to fraction form
    8,567.82/12,782.60 = 7,632.87/x
  3. Step 3: Cross multiply
    8,567.82x = 12,782.60 × 7,632.87
  4. Step 4: Simplify right side
    8,567.82x = 97,567,885.90
  5. Step 5: Solve for x
    x = 97,567,885.90/8,567.82
  6. Step 6: Final answer
    x = 11,387.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.