Home / 7,145.14-9,857.88-4,630.48

Finding the Fourth Proportional to 7,145.14, 9,857.88 and 4,630.48

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Solution

The fourth proportional to 7,145.14, 9,857.88 and 4,630.48 is: 6,388.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.14 : 9,857.88 = 4,630.48 : x
  2. Step 2: Convert to fraction form
    7,145.14/9,857.88 = 4,630.48/x
  3. Step 3: Cross multiply
    7,145.14x = 9,857.88 × 4,630.48
  4. Step 4: Simplify right side
    7,145.14x = 45,646,716.18
  5. Step 5: Solve for x
    x = 45,646,716.18/7,145.14
  6. Step 6: Final answer
    x = 6,388.50

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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.