Home / 11,081.90-16,586.40-8,603.30

Finding the Fourth Proportional to 11,081.90, 16,586.40 and 8,603.30

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Solution

The fourth proportional to 11,081.90, 16,586.40 and 8,603.30 is: 12,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.90 : 16,586.40 = 8,603.30 : x
  2. Step 2: Convert to fraction form
    11,081.90/16,586.40 = 8,603.30/x
  3. Step 3: Cross multiply
    11,081.90x = 16,586.40 × 8,603.30
  4. Step 4: Simplify right side
    11,081.90x = 142,697,775.12
  5. Step 5: Solve for x
    x = 142,697,775.12/11,081.90
  6. Step 6: Final answer
    x = 12,876.65

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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.