Home / 11,165.90-16,751.66-7,885.40

Finding the Fourth Proportional to 11,165.90, 16,751.66 and 7,885.40

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Solution

The fourth proportional to 11,165.90, 16,751.66 and 7,885.40 is: 11,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.90 : 16,751.66 = 7,885.40 : x
  2. Step 2: Convert to fraction form
    11,165.90/16,751.66 = 7,885.40/x
  3. Step 3: Cross multiply
    11,165.90x = 16,751.66 × 7,885.40
  4. Step 4: Simplify right side
    11,165.90x = 132,093,539.76
  5. Step 5: Solve for x
    x = 132,093,539.76/11,165.90
  6. Step 6: Final answer
    x = 11,830.08

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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.