Home / 11,400.12-17,100.18-9,106.20

Finding the Fourth Proportional to 11,400.12, 17,100.18 and 9,106.20

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Solution

The fourth proportional to 11,400.12, 17,100.18 and 9,106.20 is: 13,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400.12 : 17,100.18 = 9,106.20 : x
  2. Step 2: Convert to fraction form
    11,400.12/17,100.18 = 9,106.20/x
  3. Step 3: Cross multiply
    11,400.12x = 17,100.18 × 9,106.20
  4. Step 4: Simplify right side
    11,400.12x = 155,717,659.12
  5. Step 5: Solve for x
    x = 155,717,659.12/11,400.12
  6. Step 6: Final answer
    x = 13,659.30

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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.