Home / 10,810.40-16,205.80-3,883.28

Finding the Fourth Proportional to 10,810.40, 16,205.80 and 3,883.28

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Solution

The fourth proportional to 10,810.40, 16,205.80 and 3,883.28 is: 5,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,810.40 : 16,205.80 = 3,883.28 : x
  2. Step 2: Convert to fraction form
    10,810.40/16,205.80 = 3,883.28/x
  3. Step 3: Cross multiply
    10,810.40x = 16,205.80 × 3,883.28
  4. Step 4: Simplify right side
    10,810.40x = 62,931,659.02
  5. Step 5: Solve for x
    x = 62,931,659.02/10,810.40
  6. Step 6: Final answer
    x = 5,821.40

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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.