Home / 11,107.60-16,655.73-3,315.40

Finding the Fourth Proportional to 11,107.60, 16,655.73 and 3,315.40

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Solution

The fourth proportional to 11,107.60, 16,655.73 and 3,315.40 is: 4,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.60 : 16,655.73 = 3,315.40 : x
  2. Step 2: Convert to fraction form
    11,107.60/16,655.73 = 3,315.40/x
  3. Step 3: Cross multiply
    11,107.60x = 16,655.73 × 3,315.40
  4. Step 4: Simplify right side
    11,107.60x = 55,220,407.24
  5. Step 5: Solve for x
    x = 55,220,407.24/11,107.60
  6. Step 6: Final answer
    x = 4,971.41

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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.