Home / 9,410.63-12,987.09-5,218.88

Finding the Fourth Proportional to 9,410.63, 12,987.09 and 5,218.88

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Solution

The fourth proportional to 9,410.63, 12,987.09 and 5,218.88 is: 7,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,410.63 : 12,987.09 = 5,218.88 : x
  2. Step 2: Convert to fraction form
    9,410.63/12,987.09 = 5,218.88/x
  3. Step 3: Cross multiply
    9,410.63x = 12,987.09 × 5,218.88
  4. Step 4: Simplify right side
    9,410.63x = 67,777,999.32
  5. Step 5: Solve for x
    x = 67,777,999.32/9,410.63
  6. Step 6: Final answer
    x = 7,202.28

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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.