Home / 11,742.13-17,609.11-4,720.06

Finding the Fourth Proportional to 11,742.13, 17,609.11 and 4,720.06

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Solution

The fourth proportional to 11,742.13, 17,609.11 and 4,720.06 is: 7,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,742.13 : 17,609.11 = 4,720.06 : x
  2. Step 2: Convert to fraction form
    11,742.13/17,609.11 = 4,720.06/x
  3. Step 3: Cross multiply
    11,742.13x = 17,609.11 × 4,720.06
  4. Step 4: Simplify right side
    11,742.13x = 83,116,055.75
  5. Step 5: Solve for x
    x = 83,116,055.75/11,742.13
  6. Step 6: Final answer
    x = 7,078.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.