Home / 8,513.91-11,745.99-6,281.16

Finding the Fourth Proportional to 8,513.91, 11,745.99 and 6,281.16

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Solution

The fourth proportional to 8,513.91, 11,745.99 and 6,281.16 is: 8,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.91 : 11,745.99 = 6,281.16 : x
  2. Step 2: Convert to fraction form
    8,513.91/11,745.99 = 6,281.16/x
  3. Step 3: Cross multiply
    8,513.91x = 11,745.99 × 6,281.16
  4. Step 4: Simplify right side
    8,513.91x = 73,778,442.55
  5. Step 5: Solve for x
    x = 73,778,442.55/8,513.91
  6. Step 6: Final answer
    x = 8,665.64

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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.