Home / 11,840.90-17,761.35-9,940.10

Finding the Fourth Proportional to 11,840.90, 17,761.35 and 9,940.10

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Solution

The fourth proportional to 11,840.90, 17,761.35 and 9,940.10 is: 14,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.90 : 17,761.35 = 9,940.10 : x
  2. Step 2: Convert to fraction form
    11,840.90/17,761.35 = 9,940.10/x
  3. Step 3: Cross multiply
    11,840.90x = 17,761.35 × 9,940.10
  4. Step 4: Simplify right side
    11,840.90x = 176,549,595.14
  5. Step 5: Solve for x
    x = 176,549,595.14/11,840.90
  6. Step 6: Final answer
    x = 14,910.15

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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.