Home / 11,008.36-15,189.42-6,291.64

Finding the Fourth Proportional to 11,008.36, 15,189.42 and 6,291.64

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Solution

The fourth proportional to 11,008.36, 15,189.42 and 6,291.64 is: 8,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.36 : 15,189.42 = 6,291.64 : x
  2. Step 2: Convert to fraction form
    11,008.36/15,189.42 = 6,291.64/x
  3. Step 3: Cross multiply
    11,008.36x = 15,189.42 × 6,291.64
  4. Step 4: Simplify right side
    11,008.36x = 95,566,362.45
  5. Step 5: Solve for x
    x = 95,566,362.45/11,008.36
  6. Step 6: Final answer
    x = 8,681.25

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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.