Home / 11,119.94-15,345.06-6,646.16

Finding the Fourth Proportional to 11,119.94, 15,345.06 and 6,646.16

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Solution

The fourth proportional to 11,119.94, 15,345.06 and 6,646.16 is: 9,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.94 : 15,345.06 = 6,646.16 : x
  2. Step 2: Convert to fraction form
    11,119.94/15,345.06 = 6,646.16/x
  3. Step 3: Cross multiply
    11,119.94x = 15,345.06 × 6,646.16
  4. Step 4: Simplify right side
    11,119.94x = 101,985,647.24
  5. Step 5: Solve for x
    x = 101,985,647.24/11,119.94
  6. Step 6: Final answer
    x = 9,171.42

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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.