Home / 11,503.60-17,255.40-4,108.30

Finding the Fourth Proportional to 11,503.60, 17,255.40 and 4,108.30

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Solution

The fourth proportional to 11,503.60, 17,255.40 and 4,108.30 is: 6,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,503.60 : 17,255.40 = 4,108.30 : x
  2. Step 2: Convert to fraction form
    11,503.60/17,255.40 = 4,108.30/x
  3. Step 3: Cross multiply
    11,503.60x = 17,255.40 × 4,108.30
  4. Step 4: Simplify right side
    11,503.60x = 70,890,359.82
  5. Step 5: Solve for x
    x = 70,890,359.82/11,503.60
  6. Step 6: Final answer
    x = 6,162.45

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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.