Home / 11,220.81-16,833.69-3,430.23

Finding the Fourth Proportional to 11,220.81, 16,833.69 and 3,430.23

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Solution

The fourth proportional to 11,220.81, 16,833.69 and 3,430.23 is: 5,146.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.81 : 16,833.69 = 3,430.23 : x
  2. Step 2: Convert to fraction form
    11,220.81/16,833.69 = 3,430.23/x
  3. Step 3: Cross multiply
    11,220.81x = 16,833.69 × 3,430.23
  4. Step 4: Simplify right side
    11,220.81x = 57,743,428.45
  5. Step 5: Solve for x
    x = 57,743,428.45/11,220.81
  6. Step 6: Final answer
    x = 5,146.10

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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.