Home / 11,002.88-15,185.28-6,287.36

Finding the Fourth Proportional to 11,002.88, 15,185.28 and 6,287.36

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Solution

The fourth proportional to 11,002.88, 15,185.28 and 6,287.36 is: 8,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,002.88 : 15,185.28 = 6,287.36 : x
  2. Step 2: Convert to fraction form
    11,002.88/15,185.28 = 6,287.36/x
  3. Step 3: Cross multiply
    11,002.88x = 15,185.28 × 6,287.36
  4. Step 4: Simplify right side
    11,002.88x = 95,475,322.06
  5. Step 5: Solve for x
    x = 95,475,322.06/11,002.88
  6. Step 6: Final answer
    x = 8,677.30

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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.