Home / 11,638.75-17,444.45-5,385.55

Finding the Fourth Proportional to 11,638.75, 17,444.45 and 5,385.55

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Solution

The fourth proportional to 11,638.75, 17,444.45 and 5,385.55 is: 8,071.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,638.75 : 17,444.45 = 5,385.55 : x
  2. Step 2: Convert to fraction form
    11,638.75/17,444.45 = 5,385.55/x
  3. Step 3: Cross multiply
    11,638.75x = 17,444.45 × 5,385.55
  4. Step 4: Simplify right side
    11,638.75x = 93,947,887.16
  5. Step 5: Solve for x
    x = 93,947,887.16/11,638.75
  6. Step 6: Final answer
    x = 8,071.99

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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.