Home / 19,656.15-27,119.36-11,157.84

Finding the Fourth Proportional to 19,656.15, 27,119.36 and 11,157.84

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Solution

The fourth proportional to 19,656.15, 27,119.36 and 11,157.84 is: 15,394.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656.15 : 27,119.36 = 11,157.84 : x
  2. Step 2: Convert to fraction form
    19,656.15/27,119.36 = 11,157.84/x
  3. Step 3: Cross multiply
    19,656.15x = 27,119.36 × 11,157.84
  4. Step 4: Simplify right side
    19,656.15x = 302,593,423.99
  5. Step 5: Solve for x
    x = 302,593,423.99/19,656.15
  6. Step 6: Final answer
    x = 15,394.34

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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.