Home / 7,680.02-11,520.03-2,133.14

Finding the Fourth Proportional to 7,680.02, 11,520.03 and 2,133.14

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Solution

The fourth proportional to 7,680.02, 11,520.03 and 2,133.14 is: 3,199.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.02 : 11,520.03 = 2,133.14 : x
  2. Step 2: Convert to fraction form
    7,680.02/11,520.03 = 2,133.14/x
  3. Step 3: Cross multiply
    7,680.02x = 11,520.03 × 2,133.14
  4. Step 4: Simplify right side
    7,680.02x = 24,573,836.79
  5. Step 5: Solve for x
    x = 24,573,836.79/7,680.02
  6. Step 6: Final answer
    x = 3,199.71

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Double scale
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Similar ratio
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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.