Home / 11,680.88-17,523.63-4,285.40

Finding the Fourth Proportional to 11,680.88, 17,523.63 and 4,285.40

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Solution

The fourth proportional to 11,680.88, 17,523.63 and 4,285.40 is: 6,428.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.88 : 17,523.63 = 4,285.40 : x
  2. Step 2: Convert to fraction form
    11,680.88/17,523.63 = 4,285.40/x
  3. Step 3: Cross multiply
    11,680.88x = 17,523.63 × 4,285.40
  4. Step 4: Simplify right side
    11,680.88x = 75,095,742.58
  5. Step 5: Solve for x
    x = 75,095,742.58/11,680.88
  6. Step 6: Final answer
    x = 6,428.95

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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.