Home / 10,720.70-16,078.62-4,794.47

Finding the Fourth Proportional to 10,720.70, 16,078.62 and 4,794.47

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Solution

The fourth proportional to 10,720.70, 16,078.62 and 4,794.47 is: 7,190.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.70 : 16,078.62 = 4,794.47 : x
  2. Step 2: Convert to fraction form
    10,720.70/16,078.62 = 4,794.47/x
  3. Step 3: Cross multiply
    10,720.70x = 16,078.62 × 4,794.47
  4. Step 4: Simplify right side
    10,720.70x = 77,088,461.23
  5. Step 5: Solve for x
    x = 77,088,461.23/10,720.70
  6. Step 6: Final answer
    x = 7,190.62

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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.