Home / 8,518.16-11,751.78-6,285.35

Finding the Fourth Proportional to 8,518.16, 11,751.78 and 6,285.35

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Solution

The fourth proportional to 8,518.16, 11,751.78 and 6,285.35 is: 8,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.16 : 11,751.78 = 6,285.35 : x
  2. Step 2: Convert to fraction form
    8,518.16/11,751.78 = 6,285.35/x
  3. Step 3: Cross multiply
    8,518.16x = 11,751.78 × 6,285.35
  4. Step 4: Simplify right side
    8,518.16x = 73,864,079.80
  5. Step 5: Solve for x
    x = 73,864,079.80/8,518.16
  6. Step 6: Final answer
    x = 8,671.37

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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.