Home / 7,145.63-9,860.96-4,001.88

Finding the Fourth Proportional to 7,145.63, 9,860.96 and 4,001.88

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Solution

The fourth proportional to 7,145.63, 9,860.96 and 4,001.88 is: 5,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.63 : 9,860.96 = 4,001.88 : x
  2. Step 2: Convert to fraction form
    7,145.63/9,860.96 = 4,001.88/x
  3. Step 3: Cross multiply
    7,145.63x = 9,860.96 × 4,001.88
  4. Step 4: Simplify right side
    7,145.63x = 39,462,388.61
  5. Step 5: Solve for x
    x = 39,462,388.61/7,145.63
  6. Step 6: Final answer
    x = 5,522.59

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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.