Home / 11,113.90-16,634.40-8,635.30

Finding the Fourth Proportional to 11,113.90, 16,634.40 and 8,635.30

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Solution

The fourth proportional to 11,113.90, 16,634.40 and 8,635.30 is: 12,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.90 : 16,634.40 = 8,635.30 : x
  2. Step 2: Convert to fraction form
    11,113.90/16,634.40 = 8,635.30/x
  3. Step 3: Cross multiply
    11,113.90x = 16,634.40 × 8,635.30
  4. Step 4: Simplify right side
    11,113.90x = 143,643,034.32
  5. Step 5: Solve for x
    x = 143,643,034.32/11,113.90
  6. Step 6: Final answer
    x = 12,924.63

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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.