Home / 8,166.15-11,271.83-6,490.53

Finding the Fourth Proportional to 8,166.15, 11,271.83 and 6,490.53

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Solution

The fourth proportional to 8,166.15, 11,271.83 and 6,490.53 is: 8,958.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.15 : 11,271.83 = 6,490.53 : x
  2. Step 2: Convert to fraction form
    8,166.15/11,271.83 = 6,490.53/x
  3. Step 3: Cross multiply
    8,166.15x = 11,271.83 × 6,490.53
  4. Step 4: Simplify right side
    8,166.15x = 73,160,118.32
  5. Step 5: Solve for x
    x = 73,160,118.32/8,166.15
  6. Step 6: Final answer
    x = 8,958.95

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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.