Home / 7,141.12-9,853.56-4,486.64

Finding the Fourth Proportional to 7,141.12, 9,853.56 and 4,486.64

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Solution

The fourth proportional to 7,141.12, 9,853.56 and 4,486.64 is: 6,190.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.12 : 9,853.56 = 4,486.64 : x
  2. Step 2: Convert to fraction form
    7,141.12/9,853.56 = 4,486.64/x
  3. Step 3: Cross multiply
    7,141.12x = 9,853.56 × 4,486.64
  4. Step 4: Simplify right side
    7,141.12x = 44,209,376.44
  5. Step 5: Solve for x
    x = 44,209,376.44/7,141.12
  6. Step 6: Final answer
    x = 6,190.82

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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.