Home / 11,785.12-16,261.28-8,011.36

Finding the Fourth Proportional to 11,785.12, 16,261.28 and 8,011.36

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Solution

The fourth proportional to 11,785.12, 16,261.28 and 8,011.36 is: 11,054.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.12 : 16,261.28 = 8,011.36 : x
  2. Step 2: Convert to fraction form
    11,785.12/16,261.28 = 8,011.36/x
  3. Step 3: Cross multiply
    11,785.12x = 16,261.28 × 8,011.36
  4. Step 4: Simplify right side
    11,785.12x = 130,274,968.14
  5. Step 5: Solve for x
    x = 130,274,968.14/11,785.12
  6. Step 6: Final answer
    x = 11,054.19

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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.