Home / 11,412.16-17,120.67-4,838.20

Finding the Fourth Proportional to 11,412.16, 17,120.67 and 4,838.20

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Solution

The fourth proportional to 11,412.16, 17,120.67 and 4,838.20 is: 7,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.16 : 17,120.67 = 4,838.20 : x
  2. Step 2: Convert to fraction form
    11,412.16/17,120.67 = 4,838.20/x
  3. Step 3: Cross multiply
    11,412.16x = 17,120.67 × 4,838.20
  4. Step 4: Simplify right side
    11,412.16x = 82,833,225.59
  5. Step 5: Solve for x
    x = 82,833,225.59/11,412.16
  6. Step 6: Final answer
    x = 7,258.33

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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.