Home / 11,119.41-15,346.16-6,643.14

Finding the Fourth Proportional to 11,119.41, 15,346.16 and 6,643.14

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Solution

The fourth proportional to 11,119.41, 15,346.16 and 6,643.14 is: 9,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.41 : 15,346.16 = 6,643.14 : x
  2. Step 2: Convert to fraction form
    11,119.41/15,346.16 = 6,643.14/x
  3. Step 3: Cross multiply
    11,119.41x = 15,346.16 × 6,643.14
  4. Step 4: Simplify right side
    11,119.41x = 101,946,656.13
  5. Step 5: Solve for x
    x = 101,946,656.13/11,119.41
  6. Step 6: Final answer
    x = 9,168.35

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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.