Home / 8,412.55-11,605.75-4,874.47

Finding the Fourth Proportional to 8,412.55, 11,605.75 and 4,874.47

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Solution

The fourth proportional to 8,412.55, 11,605.75 and 4,874.47 is: 6,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.55 : 11,605.75 = 4,874.47 : x
  2. Step 2: Convert to fraction form
    8,412.55/11,605.75 = 4,874.47/x
  3. Step 3: Cross multiply
    8,412.55x = 11,605.75 × 4,874.47
  4. Step 4: Simplify right side
    8,412.55x = 56,571,880.20
  5. Step 5: Solve for x
    x = 56,571,880.20/8,412.55
  6. Step 6: Final answer
    x = 6,724.70

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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.