Home / 11,210.90-16,816.08-3,419.78

Finding the Fourth Proportional to 11,210.90, 16,816.08 and 3,419.78

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Solution

The fourth proportional to 11,210.90, 16,816.08 and 3,419.78 is: 5,129.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.90 : 16,816.08 = 3,419.78 : x
  2. Step 2: Convert to fraction form
    11,210.90/16,816.08 = 3,419.78/x
  3. Step 3: Cross multiply
    11,210.90x = 16,816.08 × 3,419.78
  4. Step 4: Simplify right side
    11,210.90x = 57,507,294.06
  5. Step 5: Solve for x
    x = 57,507,294.06/11,210.90
  6. Step 6: Final answer
    x = 5,129.59

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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.