Home / 11,208.20-16,812.30-5,376.20

Finding the Fourth Proportional to 11,208.20, 16,812.30 and 5,376.20

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Solution

The fourth proportional to 11,208.20, 16,812.30 and 5,376.20 is: 8,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.20 : 16,812.30 = 5,376.20 : x
  2. Step 2: Convert to fraction form
    11,208.20/16,812.30 = 5,376.20/x
  3. Step 3: Cross multiply
    11,208.20x = 16,812.30 × 5,376.20
  4. Step 4: Simplify right side
    11,208.20x = 90,386,287.26
  5. Step 5: Solve for x
    x = 90,386,287.26/11,208.20
  6. Step 6: Final answer
    x = 8,064.30

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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.