Home / 8,513.90-11,749.16-4,976.40

Finding the Fourth Proportional to 8,513.90, 11,749.16 and 4,976.40

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Solution

The fourth proportional to 8,513.90, 11,749.16 and 4,976.40 is: 6,867.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.90 : 11,749.16 = 4,976.40 : x
  2. Step 2: Convert to fraction form
    8,513.90/11,749.16 = 4,976.40/x
  3. Step 3: Cross multiply
    8,513.90x = 11,749.16 × 4,976.40
  4. Step 4: Simplify right side
    8,513.90x = 58,468,519.82
  5. Step 5: Solve for x
    x = 58,468,519.82/8,513.90
  6. Step 6: Final answer
    x = 6,867.42

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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.