Home / 8,115.04-12,150.60-4,211.24

Finding the Fourth Proportional to 8,115.04, 12,150.60 and 4,211.24

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Solution

The fourth proportional to 8,115.04, 12,150.60 and 4,211.24 is: 6,305.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.04 : 12,150.60 = 4,211.24 : x
  2. Step 2: Convert to fraction form
    8,115.04/12,150.60 = 4,211.24/x
  3. Step 3: Cross multiply
    8,115.04x = 12,150.60 × 4,211.24
  4. Step 4: Simplify right side
    8,115.04x = 51,169,092.74
  5. Step 5: Solve for x
    x = 51,169,092.74/8,115.04
  6. Step 6: Final answer
    x = 6,305.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.